Algebra Examples

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

Step 1

Expand $(- 3 x^{2} + 1) (2 x^{2} + 3 x - 4)$ by multiplying each term in the first expression by each term in the second expression.

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

Step 2

Simplify terms.

Tap for more steps...

Step 2.1

Simplify each term.

Tap for more steps...

Step 2.1.1

Rewrite using the commutative property of multiplication.

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

Step 2.1.2

Multiply $x^{2}$ by $x^{2}$ by adding the exponents.

Tap for more steps...

Step 2.1.2.1

Move $x^{2}$ .

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

Step 2.1.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

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

Step 2.1.2.3

Add $2$ and $2$ .

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

Step 2.1.3

Multiply $- 3$ by $2$ .

$- 6 x^{4} - 3 x^{2} (3 x) - 3 x^{2} \cdot - 4 + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.4

Rewrite using the commutative property of multiplication.

$- 6 x^{4} - 3 \cdot 3 x^{2} x - 3 x^{2} \cdot - 4 + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.5

Multiply $x^{2}$ by $x$ by adding the exponents.

Tap for more steps...

Step 2.1.5.1

Move $x$ .

$- 6 x^{4} - 3 \cdot 3 (x \cdot x^{2}) - 3 x^{2} \cdot - 4 + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.5.2

Multiply $x$ by $x^{2}$ .

Tap for more steps...

Step 2.1.5.2.1

Raise $x$ to the power of $1$ .

$- 6 x^{4} - 3 \cdot 3 (x^{1} x^{2}) - 3 x^{2} \cdot - 4 + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.5.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$- 6 x^{4} - 3 \cdot 3 x^{1 + 2} - 3 x^{2} \cdot - 4 + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.5.3

Add $1$ and $2$ .

$- 6 x^{4} - 3 \cdot 3 x^{3} - 3 x^{2} \cdot - 4 + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.6

Multiply $- 3$ by $3$ .

$- 6 x^{4} - 9 x^{3} - 3 x^{2} \cdot - 4 + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.7

Multiply $- 4$ by $- 3$ .

$- 6 x^{4} - 9 x^{3} + 12 x^{2} + 1 (2 x^{2}) + 1 (3 x) + 1 \cdot - 4$

Step 2.1.8

Multiply $2 x^{2}$ by $1$ .

$- 6 x^{4} - 9 x^{3} + 12 x^{2} + 2 x^{2} + 1 (3 x) + 1 \cdot - 4$

Step 2.1.9

Multiply $3 x$ by $1$ .

$- 6 x^{4} - 9 x^{3} + 12 x^{2} + 2 x^{2} + 3 x + 1 \cdot - 4$

Step 2.1.10

Multiply $- 4$ by $1$ .

$- 6 x^{4} - 9 x^{3} + 12 x^{2} + 2 x^{2} + 3 x - 4$

Step 2.2

Add $12 x^{2}$ and $2 x^{2}$ .

$- 6 x^{4} - 9 x^{3} + 14 x^{2} + 3 x - 4$