Question 92491
82) write m^20 as a power of m^5
Remember the rules of exponents, you should be able to see that if would be
{{{(m^5)^4}}} which is {{{m^((4*5))}}}
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#86) what expression raised to the fourth power is 81x^12y^8z^16?
(this is 81x to the power of 12 then y to the power of 8 then z to the power of 16)
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{{{81*x^12*y^8*z^16}}}; 
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note that 81 = 3^4
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Find the 4th root of each term
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{{{81^(1/4)*x^(12/4)*y^(8/4)*z^(16/4)}}} = 
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{{{3*x^3*y^2*z^4}}}
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Check:
{{{(3*x^3*y^2*z^4)^4}}} = {{{81*x^12*y^8*z^16}}}
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did this help?