, ,

Replace the function designators in with the actual functions.

Simplify by multiplying through.

Apply the distributive property.

Simplify the expression.

Rewrite using the commutative property of multiplication.

Multiply by .

Simplify each term.

Multiply by by adding the exponents.

Multiply by .

Raise to the power of .

Use the power rule to combine exponents.

Add and .

Multiply by .

Evaluate at .

Remove parentheses.

Multiply by .

Solve f(x)=2x^2-2 , g(x)=-2x , (fg)(x)