# How do you factor: #y= x^3 + x^2 − 20x #?

##### 1 Answer

Factor

#### Explanation:

Find 2 numbers knowing sum (1) and product (-20).

Factor pairs of

Therefore, the 2 numbers are

Factored form:

#y = xY = x(x - 4)(x + 5)#

Factor

Find 2 numbers knowing sum (1) and product (-20).

Factor pairs of

Therefore, the 2 numbers are

Factored form:

#y = xY = x(x - 4)(x + 5)#