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What is 3 times 3 power 2x times 3 power negative 2 minus 3 power 2x times 3 and why?
Wiki User
∙ 11y ago
I read that as:
(3) x (32x) x (3-2) - (32x) x (3) = 32x(3 x 3-2 - 3)
= 32x (3-1 - 3)
= 32x-1(1 - 32)
= -8 x 32x-1
When multiplying the same base (number) to any power, keep the base and add the powers, eg:
32x x 3-1 = 32x + (-1) = 32x-1
3 x 3-2 = 31 x 3-2 = 31-2 = 3-1
Wiki User
∙ 11y ago
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