Question

Factor completly x^2 -12x -45

Answer 1

∑ Hey, jillianwagler ⊃

Answer:

`\left(x+3\right)\left(x-15\right)`

Explanation:

Given info:

Factor completely:
`x^2 -12x -45`

Solve:

Break the expression to :
`\left(x^2+3x\right)+\left(-15x-45\right)`

Factor out x from x²+ 3x :x ( x +3 )

Factor out -15 from -15x - 45 : -15( x + 3 )

Put them together:

`x\left(x+3\right)-15\left(x+3\right)`

Now factor x + 3

Answer~:
`\left(x+3\right)\left(x-15\right)`

xcookiex12~

8/19/2022