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Mathematics 7 Online
OpenStudy (anonymous):

Algebra

OpenStudy (anonymous):

@ganeshie8

ganeshie8 (ganeshie8):

\(\huge \frac{x^{\frac{2}{3}}}{x^{\frac{4}{9}}}\)

OpenStudy (anonymous):

Yeah but you need simplify that and Idk how exactly, don't you need to find the common denominator and stuff?

ganeshie8 (ganeshie8):

yep, lets work it step by step :) first property we use :- \(\large \color{red}{\frac{a^m}{a^n} = a^{m-n}}\) when the base is same, we can subtract the exponents of a fraction

ganeshie8 (ganeshie8):

\(\huge x^{\left( \frac{2}{3} - \frac{4}{9}\right) }\)

OpenStudy (anonymous):

We need to simplify it into radical form btw

ganeshie8 (ganeshie8):

yes that comes later

OpenStudy (anonymous):

Okay, I was just making sure that it was mentioned c:

ganeshie8 (ganeshie8):

okay :) do the subtraction, in the exponenet

OpenStudy (anonymous):

\[\frac{ -2 }{ -6 }\]

OpenStudy (anonymous):

?

ganeshie8 (ganeshie8):

\(\huge x^{\left( \frac{2}{3} - \frac{4}{9}\right) }\) \(\huge x^{ \left( \frac{ 2 \times 3}{3 \times 3} - \frac{4}{9} \right) } \) \(\huge x^{ \left( \frac{ 6}{9} - \frac{4}{9} \right) } \) \(\huge x^{ \left( \frac{ 6-4}{9} \right) } \) \(\huge x^{ \left( \frac{ 2}{9} \right) } \)

ganeshie8 (ganeshie8):

check if i simplified the exponent correctly

OpenStudy (anonymous):

I believe so, because you don't need to subtract the denominators if they're the same and well, 6-4 is 2

ganeshie8 (ganeshie8):

good, lets keep going

ganeshie8 (ganeshie8):

second property we use :- \(\large \color{red}{ a^{\frac{m}{n}} = \sqrt[n]{a^m}}\)

ganeshie8 (ganeshie8):

\(\huge x^{ \left( \frac{ 2}{9} \right) } \) \(\huge \sqrt[9]{x^{2}} \)

ganeshie8 (ganeshie8):

thats the final simplified form notice that we oly had to use two exponent properties to simplify

OpenStudy (anonymous):

Okay, thanks so much!

ganeshie8 (ganeshie8):

np :)

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