Answer:
x=4 and x=14
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
x2−18x+81=25
Step 2: Subtract 25 from both sides.
x2−18x+81−25=25−25
x2−18x+56=0
Step 3: Factor left side of equation.
(x−4)(x−14)=0
Step 4: Set factors equal to 0.
x−4=0 or x−14=0
x=4 or x=14
