Answer:
x=−5 or x=9
Step-by-step explanation:
Step 1: Subtract x+5 from both sides.
x2−3x−40−(x+5)=x+5−(x+5)
x2−4x−45=0
Step 2: Factor left side of equation.
(x+5)(x−9)=0
Step 3: Set factors equal to 0.
x+5=0 or x−9=0
