x^2 + x - 30 = 12
x^2 + x - 42 = 0
(x+7)(x-6) = 0
if the product of two numbers is zero, then at least one of them must be zero.
So, either
x+7 = 0
or
x-6 = 0
Use the zero product property to find the solutions to the equation x2 + x – 30 = 12.
x = –7 or x = 6
x = –7 or x = –6
x = –6 or x = 7
x = 6 or x = 7
2 answers
jb./kn