Question

I need help understanding how to factor this—

21x^4 - 59x^3 - 80x^2

Answer 1

x^2*(21x−80)(x+1)

Explanation:

First factor out the variable x:

21x^4 - 59x^3 - 80x^2

x^2(21x^2-59x-80), From here you can factor this normally

x^2*(21x−80)(x+1) This is the answer.