Algebra Examples

$\frac{4 x + 4 {(3 + a)}^{2}}{y - 1}$ para $x = - 2$ , $y = 3$ , $a = - 4$

Step 1

Replace the variable $x$ with $- 2$ in the expression.

$\frac{4 (- 2) + 4 {(3 + a)}^{2}}{y - 1}$

Step 2

Replace the variable $y$ with $3$ in the expression.

$\frac{4 (- 2) + 4 {(3 + a)}^{2}}{(3) - 1}$

Step 3

Replace the variable $a$ with $- 4$ in the expression.

$\frac{4 (- 2) + 4 {(3 - 4)}^{2}}{(3) - 1}$

Step 4

Remove parentheses.

$\frac{4 (- 2) + 4 {(3 - 4)}^{2}}{(3) - 1}$

Step 5

Simplify the numerator.

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Step 5.1

Multiply $4$ by $- 2$ .

$\frac{- 8 + 4 {(3 - 4)}^{2}}{3 - 1}$

Step 5.2

Subtract $4$ from $3$ .

$\frac{- 8 + 4 {(- 1)}^{2}}{3 - 1}$

Step 5.3

Raise $- 1$ to the power of $2$ .

$\frac{- 8 + 4 \cdot 1}{3 - 1}$

Step 5.4

Multiply $4$ by $1$ .

$\frac{- 8 + 4}{3 - 1}$

Step 5.5

Add $- 8$ and $4$ .

$\frac{- 4}{3 - 1}$

Step 6

Simplify the expression.

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Step 6.1

Subtract $1$ from $3$ .

$\frac{- 4}{2}$

Step 6.2

Divide $- 4$ by $2$ .

$- 2$