Question

factor -16x^2 - 200x - 600 = 0

Answer 1

First factor out -8

Answer 2

ok hold on

Answer 3

ok -8(2x^2 + 25x +75)

Answer 4

Now multiply the 2 and 75. That will be 150. Find factors of 150 whose sum is 25

Answer 5

15 & 10 ?

Answer 6

Replace 25x with 15x + 10x and factor by grouping.

Answer 7

when i group 2x^2 and 10x should i also factor out a 2x or just the 2?

Answer 8

2x

Answer 9

so the final factored form is (2x+15)(x+5) ?

Answer 10

Don't forget the -8 you factored out at the beginning.

Answer 11

oh yeah! ok thanks so much

Answer 12

yw