### Home > AC > Chapter 12 > Lesson 12.1.1 > Problem 12-7

12-7.

Simplify each expression below. Your answer should contain no parentheses and no negative exponents.

Anything to the zero power equals

.

When multiplying like bases, add their exponents.

See the 'step' in part (b).

Rewrite the expression as multiplication three times.

Then follow the steps in part (b).