1 2 − 4 ( 1 2 − 5 ) 2 = 1 2 − 4 1 2 − 5 × 2 = 1 2 − 4 1 2 − 10 = 1 2 − 10 − ( − 4 ) = 1 2 − 10 + 4 = 1 2 − 6 A n s w er : − 6
The missing exponent in the expression ( 1 2 − 5 ) 2 /1 2 − 4 = 1 2 ___ is − 6 . We find this by applying the power of a power rule and the quotient rule of exponents. So the answer is 1 2 − 6 .
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