Question

Express with positive exponents

Answer 1

2b^2

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5a^4

Explanation:

2a^-4

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5b^-2

Negative exponents go to the denominator when they are in the numerator

and to the numerator when they are in the denominator

a^-4 becomes 1/a^4

1/b^-2 becomes b^2

2/5 * 1/a^4 * b^2

2*b^2 * 1/5a^4

Rewriting

2b^2

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5a^4