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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

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12y ago

What else can I help you with?