How to solve (2)(x - 9)(x + 9)

1. Factor the equation (x + 2)(x + 3) = 0. 2. Set each factor equal to zero: x + 2 = 0 and x + 3 = 0. 3. Solve for x: x = -2 and x = -3.

Solve (2)(x - 9)(x + 9) | Equatix

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Question

$$(2)(x-9)(x+9)$$

Evaluate

$2\left(x^{2}-81\right)$

Solution Steps

Use the distributive property to multiply $2$ by $x-9$.

$$\left(2x-18\right)\left(x+9\right)$$

Apply the distributive property by multiplying each term of $2x-18$ by each term of $x+9$.

$$2x^{2}+18x-18x-162$$

Combine $18x$ and $-18x$ to get $0$.

$$2x^{2}-162$$

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$2x^{2}-162$

Solution Steps

Use the distributive property to multiply $2$ by $x-9$.

$$\left(2x-18\right)\left(x+9\right)$$

Apply the distributive property by multiplying each term of $2x-18$ by each term of $x+9$.

$$2x^{2}+18x-18x-162$$

Combine $18x$ and $-18x$ to get $0$.

$$2x^{2}-162$$

Show Solution

Basic Math

Pre-Algebra

Algebra

Trigonometry

Calculus

Precalculus

Statistics

Finite Math

Linear Algebra

Chemistry

Example

Question

Evaluate

Solution Steps

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Solution Steps