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a raise to 8 times a raise to 2, you don't multi0ply the exponents you add the exponents so that the answer is a raise to 10
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If y raise(^) -2 over x raise(^) 2 -->> y^-2 / x^2 = x^2y^2
because there should be no negative exponent in division if there is, bring down the vatiable together w/ the negative exponent but change the negative exponent into positive sign ..
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