# How do you factor #5x^3+15x^2-20x#?

##### 3 Answers

May 26, 2018

#### Explanation:

#"take out a "color(blue)"common factor "5x#

#=5x(x^2+3x-4)#

#"the factors of - 4 which sum to + 3 are +4 and - 1"#

#=5x(x+4)(x-1)#

May 26, 2018

#### Explanation:

We get

Solving

we obtain

or

so finally we get

May 26, 2018

#### Explanation:

Factor:

Factor out the GCF

Find two numbers that when added equal