Raise the quality in parentheses to the indicated exponent, and simplify the resulting expression with positive exponents.

For this case we have the following expression:

By definition we have to:

So:

Simplifying:

By definition of power properties we have to:

So, rewriting the expression we have:

SImplifying:

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol