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UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{3\sqrt x}{9x}\] factorize the denominator use \[(a+b)(ab)=a^2ab+bab^2=a^2b^2\] cancel common factors
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
yes i know that but how do you that for sqrt?
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
use \(x=\sqrt x^2\)
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
mmm so 3sqet(x)=(x^23^9)?
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
your looking at the numerator (bottom bit of the fraction) you should be looking at the denominator ( the bottom bit of the fraction) \[9x=(\cdots)(\cdots)\]
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
9x...... sqert(3)(x)??
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
\[9x=3^2\sqrt x^2=(\cdots)(\cdots)\]
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
(3sq\[\left( 3\sqrt{x} \right)\]
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
(3sq\[\left( 3\sqrt{x} \right)\](3sq\[\left( 3\sqrt{x} \right)\]?
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
\[\left( 3\sqrt{x} \right)\]
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
\left( 3sqrt{x} \right) \left( 3sqrt{x} \right)
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
(3sqrt(x)) (3sqrt(x)
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
not quite\[a^2b^2=(a+b)(ab)\] so\[9x=3^2\sqrt x^2=\]
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
hope its right
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
\[9x=3^2\sqrt x^2=(3+\sqrt x)(3\sqrt x)\]
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
so\[\frac{3\sqrt x}{9x}=\frac{3\sqrt x}{(3+\sqrt x)(3{\sqrt x)}}\]\[\qquad\qquad =\frac{\cancel{3\sqrt x}}{(3+\sqrt x)\cancel{(3{\sqrt x)}}}\]
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
what about x^3+64/x+4
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
I got (x+4)(x^2+4x+16)/(x+4)?
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
almost \[(a^3+b^3)=(a+b)(a^2ab+b^2)\]
 one year ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.1
once you have fixed the sign error, cancel the common factor
 one year ago

Dodo1 Group TitleBest ResponseYou've already chosen the best response.0
Thank you it was very helpful!!
 one year ago
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