# Solve for: sqrt()[ 4 ] /(-81)-16

## Expression: ${x}^{2}-2x-15$

Write $-2x$ as a difference

${x}^{2}+3x-5x-15$

Factor out $x$ from the expression

$x \times \left( x+3 \right)-5x-15$

Factor out $-5$ from the expression

$x \times \left( x+3 \right)-5\left( x+3 \right)$

Factor out $x+3$ from the expression

$\left( x+3 \right) \times \left( x-5 \right)$

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