Question

rewrite f(x)=x^2+8x-20 in the form that would most easily help you identify the zeros of the function

Answer 1

f(x) = (x-2) (x+10)

Explanation:

f(x)=x^2+8x-20

Factor the right hand side

What 2 numbers multiply to -20 and add to 8

-2 * 10 = -20

-2 + 10 = 8

f(x) = (x-2) (x+10)

Then we can use the zero product property to help us to find the zero's