Question

What are the solutions to the equation x squared + x -30 =12

Answer 1

Answer:

x = 6   x = -7

Step-by-step explanation:

Subtract 12 from each side:

x^2 + x - 30 - 12 = 12 - 12

Simplify:

x^2 + x - 42 = 0

Solve with quadratic formula using both +/- after the first -1:

x = $\frac{-1+\sqrt{1^2 -4*1(-42)} }{2*1}$

Simplify:

x = 6

x = -7