SOLUTION: Factor completely. Show work, and show the check by re-multiplication of the factors. If the polynomial is not factorable, write “prime.” 5x^2-15x-200

Algebra ->  Exponents -> SOLUTION: Factor completely. Show work, and show the check by re-multiplication of the factors. If the polynomial is not factorable, write “prime.” 5x^2-15x-200       Log On


   

Question 1004606: Factor completely. Show work, and show the check by re-multiplication of the factors. If the polynomial is not factorable, write “prime.”
5x^2-15x-200



Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
First factor 5 out:

5(x^2 - 3x - 40)

-40 = -8*5, and you can factor the polynomial as such:

5(x-8)(x+5)