nothing
Where exactly are you stuck?
http://www.wyzant.com/resources/lessons/math/algebra/properties_of_algebra This gives names to most of the rules you need to use
Just go through each simplification step by step and write what property you used, but yeah to be honest I dont have much experience describing mathematical manipulations.
hmmm
hmm let's try the 1st one.... what would you get for the numerator on this one \(\bf \large \cfrac{x^{\frac{4}{3}}\cdot x^{\frac{7}{3}} }{x^{\frac{2}{3}}}\quad ?\)
we don't necessarily expect you to be great at it, just to do some footwork
the numerator on the 1st one, should be something you should already know
same base, different exponents
I can still try to help you, for the first manipulation \[\frac{x^4}{x^2} = x^4x^{-2}\] "The first step of the simplification involves the elimination of the denominator by writing the exponent as a negative, in order to manipulate the exponents. x^4x^2 = x^(4+2) In the second step The exponents are added together, this can be done because their base are the same. Just drone on like that I suppose?
I just was too lazy to write out your problem so I just wrote out a simpler one that is pretty much the same
yeah
"The first step of the simplification involves the elimination of the denominator by writing the exponent as a negative, in order to manipulate the exponents further."
it isnt really hard just go through each step of the manipulation and explain it in words. Expressing the denominators exponent as a negative to bring it up to the numerator, is a way of taking it out of its fractional form.
\(\bf \Large {\cfrac{x^{\frac{4}{3}}\cdot x^{\frac{7}{3}} }{x^{\frac{2}{3}}}\implies \cfrac{x^{\frac{4}{3}+\frac{7}{3}}}{x^{\frac{2}{3}}}\implies \cfrac{x^{\frac{11}{3}}}{x^{\frac{2}{3}}}\\ \quad \\ \cfrac{x^{\frac{11}{3}}}{1}\cdot \cfrac{1}{x^{\frac{2}{3}}}\implies \cfrac{x^{\frac{11}{3}}}{1}\cdot x^{-\frac{2}{3}}\implies x^{\frac{11}{3}}\cdot x^{-\frac{2}{3}}\\ \quad \\ \implies x^{\frac{11}{3}-\frac{2}{3}}}\)
No problem :) if you get stuck feel free to ask for further assistance
the 2nd one is very straightforward \(\bf \large \sqrt[5]{x^4\cdot x^5\cdot x^6}\implies \sqrt[5]{x^{4+5+6}}\)
3rd one is \(\bf \large \left(\sqrt[7]{x}\right)^{21}\implies \sqrt[7]{x^{21}}\)
4th one \(\bf \large {x^{\frac{1}{3}}\cdot x^{\frac{2}{3}}\cdot x^{\frac{4}{3}}\cdot \sqrt[3]{x}\\ \quad \\ \textit{keep in mind that }a^{\frac{n}{m}} = \sqrt[m]{a^n}\qquad thus\\ \quad \\ \sqrt[3]{x}\implies x^{\frac{1}{3}}}\)
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