Question

2x^2+2x-40

Answer 1

roots -5 and 4

Answer 2

I can graph if needed.

Answer 3

first factor out 2
2(x^2+x-20)
now you need two numbers that the sum is 1(from 1x) and the product is -20(from -20)

Answer 4

as usernae said..
2(x+5)(x-4)
roots = -5 and 4

Answer 5

yup! i was right!

Answer 6

first factor out the greatest common factor for each term. Then factor the remaining polynomial.