(evaluate) (algebra)

Mathematics
Tutor: None Selected Time limit: 1 Day

Evaluate: a^-2b^3 if a = -3 and b = -2 .

May 15th, 2015

I think what you want evaluated is: a^(- 2*(b^3). If not, let me know. If so,

when b = -2, then b^3 = (02)*(-2)*(-2) = -8. Then we we have to evaluate a^(-2(-8)) = a^16 = (-3)^16.

(-3)^16 = (9)^8 = 81^4. Now I need a calculator: 81^4 = 43046721.  

May 15th, 2015

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May 15th, 2015
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May 15th, 2015
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