Factor the following: x {x}^(2) + 8x + 15 ​

Question

Factor the following: x

`{x}^(2) + 8x + 15`
​

Answer 1

Explanation:

Use the quadratic formula to find the roots of x²+8x+15

x = [-8±√(8²-4·1·15)]/[2·1] = [-8±√4]/2 = -3, -5

make factors from the roots

x²+8x+5 = (x+3)(x+5)