Precálculo Ejemplos

${(3 x + y^{2})}^{5}$

Paso 1

El triángulo de Pascal se puede visualizar de la siguiente manera:

$1$

$1 - 1$

$1 - 2 - 1$

$1 - 3 - 3 - 1$

$1 - 4 - 6 - 4 - 1$

$1 - 5 - 10 - 10 - 5 - 1$

El triángulo puede usarse para calcular los coeficientes de la expansión de ${(a + b)}^{n}$ al tomar el exponente $n$ y sumar $1$ . Los coeficientes se corresponderán con la línea $n + 1$ del triángulo. Para ${(3 x + y^{2})}^{5}$ , $n = 5$ de modo que los coeficientes de la expansión se corresponderán con la línea $6$ .

Paso 2

La expansión sigue la regla ${(a + b)}^{n} = c_{0} a^{n} b^{0} + c_{1} a^{n - 1} b^{1} + c_{n - 1} a^{1} b^{n - 1} + c_{n} a^{0} b^{n}$ . Los valores de los coeficientes, desde el triángulo, son $1 - 5 - 10 - 10 - 5 - 1$ .

$1 a^{5} b^{0} + 5 a^{4} b + 10 a^{3} b^{2} + 10 a^{2} b^{3} + 5 a b^{4} + 1 a^{0} b^{5}$

Paso 3

Sustituye los valores reales de $a$ , $3 x$ y $b$ en la expresión $y^{2}$ .

$1 {(3 x)}^{5} {(y^{2})}^{0} + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4

Simplifica cada término.

Toca para ver más pasos...

Paso 4.1

Multiplica ${(3 x)}^{5}$ por $1$ .

${(3 x)}^{5} {(y^{2})}^{0} + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.2

Aplica la regla del producto a $3 x$ .

$3^{5} x^{5} {(y^{2})}^{0} + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.3

Eleva $3$ a la potencia de $5$ .

$243 x^{5} {(y^{2})}^{0} + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.4

Multiplica los exponentes en ${(y^{2})}^{0}$ .

Toca para ver más pasos...

Paso 4.4.1

Aplica la regla de la potencia y multiplica los exponentes, ${(a^{m})}^{n} = a^{m n}$ .

$243 x^{5} y^{2 \cdot 0} + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.4.2

Multiplica $2$ por $0$ .

$243 x^{5} y^{0} + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.5

Cualquier valor elevado a $0$ es $1$ .

$243 x^{5} \cdot 1 + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.6

Multiplica $243$ por $1$ .

$243 x^{5} + 5 {(3 x)}^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.7

Aplica la regla del producto a $3 x$ .

$243 x^{5} + 5 (3^{4} x^{4}) {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.8

Eleva $3$ a la potencia de $4$ .

$243 x^{5} + 5 (81 x^{4}) {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.9

Multiplica $81$ por $5$ .

$243 x^{5} + 405 x^{4} {(y^{2})}^{1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.10

Multiplica los exponentes en ${(y^{2})}^{1}$ .

Toca para ver más pasos...

Paso 4.10.1

Aplica la regla de la potencia y multiplica los exponentes, ${(a^{m})}^{n} = a^{m n}$ .

$243 x^{5} + 405 x^{4} y^{2 \cdot 1} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.10.2

Multiplica $2$ por $1$ .

$243 x^{5} + 405 x^{4} y^{2} + 10 {(3 x)}^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.11

Aplica la regla del producto a $3 x$ .

$243 x^{5} + 405 x^{4} y^{2} + 10 (3^{3} x^{3}) {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.12

Eleva $3$ a la potencia de $3$ .

$243 x^{5} + 405 x^{4} y^{2} + 10 (27 x^{3}) {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.13

Multiplica $27$ por $10$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} {(y^{2})}^{2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.14

Multiplica los exponentes en ${(y^{2})}^{2}$ .

Toca para ver más pasos...

Paso 4.14.1

Aplica la regla de la potencia y multiplica los exponentes, ${(a^{m})}^{n} = a^{m n}$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{2 \cdot 2} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.14.2

Multiplica $2$ por $2$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 10 {(3 x)}^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.15

Aplica la regla del producto a $3 x$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 10 (3^{2} x^{2}) {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.16

Eleva $3$ a la potencia de $2$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 10 (9 x^{2}) {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.17

Multiplica $9$ por $10$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} {(y^{2})}^{3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.18

Multiplica los exponentes en ${(y^{2})}^{3}$ .

Toca para ver más pasos...

Paso 4.18.1

Aplica la regla de la potencia y multiplica los exponentes, ${(a^{m})}^{n} = a^{m n}$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{2 \cdot 3} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.18.2

Multiplica $2$ por $3$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 5 {(3 x)}^{1} {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.19

Simplifica.

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 5 (3 x) {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.20

Multiplica $3$ por $5$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x {(y^{2})}^{4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.21

Multiplica los exponentes en ${(y^{2})}^{4}$ .

Toca para ver más pasos...

Paso 4.21.1

Aplica la regla de la potencia y multiplica los exponentes, ${(a^{m})}^{n} = a^{m n}$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{2 \cdot 4} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.21.2

Multiplica $2$ por $4$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + 1 {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.22

Multiplica ${(3 x)}^{0}$ por $1$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + {(3 x)}^{0} {(y^{2})}^{5}$

Paso 4.23

Aplica la regla del producto a $3 x$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + 3^{0} x^{0} {(y^{2})}^{5}$

Paso 4.24

Cualquier valor elevado a $0$ es $1$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + 1 x^{0} {(y^{2})}^{5}$

Paso 4.25

Multiplica $x^{0}$ por $1$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + x^{0} {(y^{2})}^{5}$

Paso 4.26

Cualquier valor elevado a $0$ es $1$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + 1 {(y^{2})}^{5}$

Paso 4.27

Multiplica ${(y^{2})}^{5}$ por $1$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + {(y^{2})}^{5}$

Paso 4.28

Multiplica los exponentes en ${(y^{2})}^{5}$ .

Toca para ver más pasos...

Paso 4.28.1

Aplica la regla de la potencia y multiplica los exponentes, ${(a^{m})}^{n} = a^{m n}$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + y^{2 \cdot 5}$

Paso 4.28.2

Multiplica $2$ por $5$ .

$243 x^{5} + 405 x^{4} y^{2} + 270 x^{3} y^{4} + 90 x^{2} y^{6} + 15 x y^{8} + y^{10}$