Question

Use the zero product property to find the solutions to the equation x^2 + x – 30 = 12.
a. x = –7 or x = 6
b. x = –7 or x = –6
c. x = –6 or x = 7
d. x = 6 or x = 7

Answer 1

subtract the 12 over

x^2 +x -42 = 0

find factors of -42 that add up to 1

Answer 2

which is the right answer choice?

Answer 3

haha what are 2 factors of -42 that add up to 1 ?

Answer 4

c. lol

Answer 5

hold on c) gives correct factors but not the answers for "x" :)

--> (x+7)(x-6) = 0

x + 7 = 0 --> x = -7
x-6 = 0 ---> x = 6