Subtract from .Rewrite using the commutative property of multiplication.Multiply by by adding the exponents.Tap for more steps…Move .Multiply by .Tap for more steps…Raise to the power of .Use the power rule to combine exponents.Add and . Simplify a^2(21a-16a) Do you need help with math? Try our mobile app Our app allows students to get instant step-by-step solutions to all kinds of math troubles. Try it for Free! Our MATH EXPERTS JackHudson Charlie Trom Lucy Evel