Question

How do you solve 2r^2+2r-24=0 using the quadratic formula ?

Answer 1

2r2+2r−24=0

Step 1: Factor left side of equation.

2(r−3)(r+4)=0

Step 2: Set factors equal to 0.

r−3=0 or r+4=0

r = 3 or r = −4