Question

Rewrite f(x)=x2+8x-20 in the form that would most easily help you identfiy the zeros of the function

Answer 1

Answer:

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

Step-by-step explanation:

We want to rewrite

$f(x) = {x}^{2} + 8x - 20$

in the form that would most easily help you identfiy the zeros of the function.

This the same as writing in factored form.

$f(x) = {x}^{2} + 10x - 2x - 20$

Factor by grouping:

$f(x) = {x}(x+ 10)- 2(x + 10)$

Factor further to get:

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