Question

What is the positive root of the equation x^2 + 5x = 150?

Answer 1

hint:

that equation factors to

(x+15)(x-10)

so what is the positive root?

Answer 2

15?

Answer 3

but when I do the equation I come up with 10 as being the positive

Answer 4

10 is the positive root

Answer 5

remember, you need to set it equal to 0 to find roots

(x+15)(x-10) = 0

(x - 10) = 0
x = 10