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  1. Simplify each expression below. Your answer should contain no parentheses and no negative exponents. Homework Help ✎

    1. (251/2x5)(4x−6)

    2. 5t−3

Anything to the zero power equals 1.

When multiplying like bases, add their exponents.

20x −1 = ?

See the 'step' in part (b).

Rewrite the expression as multiplication three times.
Then follow the steps in part (b).