Algebra Help: simplify {54 b^4 x^4 / 16 b x^2}^1/3

Matholdie

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Jun 1, 2006
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HELP!!!!!
Going back to school and I am struggling with my Algebra Class Can someone help? PLEASE!!!!!!!!!!

Simplify the expression:

Large Brackets {54b^4x^4/16bx^2}^1/3

Not understanding on how to do this.

THanks
 
\(\displaystyle [\frac {54b^4x^4}{16bx^2}]^{\frac{1}{3}}\)

reduce the fraction inside the brackets first ...

\(\displaystyle [\frac {27b^3x^2}{8}]^{\frac{1}{3}}\)

raise every term to the 1/3 power ...

\(\displaystyle \frac{27^{\frac{1}{3}}(b^3)^{\frac{1}{3}}(x^2)^{\frac{1}{3}}}{8^{\frac{1}{3}}}\)

simplify ...

\(\displaystyle \frac{3b \sqrt[3]{x^2}}{2}\)
 
Algebra help

Skeeter,

When reducing the fraction how did you reduce the b^4 to a B^3?

I kept coming up with 3/2B 2/3x
 
\(\displaystyle \L
\frac{{b^4 }}{b} = \frac{{b^4 }}{{b^1 }} = b^{4 - 1} = b^3\)
 
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