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1 vote
What is the expression in simplest radical form?

(5x^(4) y^(3))^{(2)/(9) }

User HTeuMeuLeu
by
7.6k points

2 Answers

2 votes

So here are a few things about exponents you should know:

  1. Fractional exponents to radicals:
    x^(m)/(n)=\sqrt[n]{x^m}
  2. Powering a power:
    (x^m)^n=x^(m*n)

So firstly, convert the fractional exponent to a radical:


(5x^4y^3)^(2)/(9)=\sqrt[9]{(5x^4y^3)^2}

Next, solve the outer power:


\sqrt[9]{(5x^4y^3)^2} =\sqrt[9]{5^2x^(4*2)y^(3*2)} =\sqrt[9]{25x^8y^6}

Your final answer is
\sqrt[9]{25x^8y^6}

User Nabat Farsi
by
8.1k points
5 votes

Use the formula a^(x/n) = (n)√a^x (note it is a small n)

(5x^4y^3)^(2/9) = Small 9

Convert.


\sqrt{9{{(25x^(8))y^9 }}}
is your answer

hope this helps

User Dejay
by
8.8k points

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