what is (2x)² when u do power to a power

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Guest Sep 25, 2014

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Best Answer

(2x)² = (2x) · (2x) = (2·2) · (x·x) = 4x²

However, this really isn't "a power to a power".

An example of a power to a power is (x³)² which becomes (x³)·(x³) which is (x·x·x)·(x·x·x)=x^6.

Rule: when taking a power to a power, multiply the exponents.

geno3141 Sep 25, 2014

geno3141 · Answer 1 · 2014-09-25T10:33:39

(2x)² = (2x) · (2x) = (2·2) · (x·x) = 4x²

However, this really isn't "a power to a power".

An example of a power to a power is (x³)² which becomes (x³)·(x³) which is (x·x·x)·(x·x·x)=x^6.

Rule: when taking a power to a power, multiply the exponents.