Question

Which is the value of this expression when m = 3 and n = -5?

(6m^-1 n^0)^-3

A. -8
B. -1/8
C. 1/8
D. 8

Answer 1

The correct answer is 1/8

Answer 2

The answer is: [C]: " 1/8 " .
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(6 * 3⁻¹) ⁻³ = (6 / 3¹) ⁻³ = 2⁻³ = 1 / 2³ = 1/8 ; which is answer choice: [C]:


Note that n⁰ =1 ; regardless of what "n" is equal to;
and any value, multiplied by "1", equals that same value.

so "n⁰ " ; which equals "1" ; is simply "canceled out" .
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