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24 March, 11:04

If I simplify (3b^3) ^4 and in the end get 81b^12 how do I get there?

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  1. 24 March, 11:50
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    Everything inside of the parenthesis needs to be to the 4th root. So you can see it as:

    3^4 * (b^3) ^4

    3^4 = 3*3*3*3 = 81

    And using rules of exponents, you need to multiply those exponents.

    b ^ (3*4) = b^12

    Put them together ... 81 b^12
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