Question

Which expression is equivalent to the given expression?
(12g^2h^7)(3g^-2h^-4)
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Answer 1

B

Explanation:

(12g²h⁷)(3g⁻²h⁻⁴) = 12 * 3 * g²⁺⁽⁻²⁾ * h⁷⁺⁽⁻⁴⁾

= 36 * g⁰ * h³

= 36 * 1 * h³

= 36h³

Any variable or constant to the power of zero is 1

a⁰ = 1 ; 12⁰ = 1 ; (-5)⁰ = 1