Advanced Math practice question

Answer: 7

2ˣ · 2ˣ⁺¹ = 2^(2x + 1), and at x = 3 that exponent is 7.

Common wrong answers

If you answered 4

4 uses only x + 1.

If you answered 6

6 uses 2x without the +1.

If you answered 12

12 multiplies the exponents 3 and 4.

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