16Hit1600
Advanced MathMediumShifting an exponent by a known amount

Advanced Math practice question

If 2ᵃ = 5, what is the value of 2^(a + 3)?

Answer: 40

2^(a + 3) = 2ᵃ · 2³ = 5 × 8 = 40.

Common wrong answers

If you answered 8
8 adds 3 to 5, treating the exponent shift as an addition.
If you answered 15
15 multiplies 5 by 3 instead of by 2³.
If you answered 125
125 is 5³, cubing the value instead of multiplying by 8.

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