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andriod09
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I need help on a Factoring problem. Its factoring a fraction, on top of another factoring fraction. Its in the comments
 2 years ago
 2 years ago
andriod09 Group Title
I need help on a Factoring problem. Its factoring a fraction, on top of another factoring fraction. Its in the comments
 2 years ago
 2 years ago

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andriod09 Group TitleBest ResponseYou've already chosen the best response.0
\[\huge\frac{\frac{30x^2+27x+6}{9x^249}}{\frac{30x+15}{30x70}}\]
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
The size of those fraction bars is important. The top two appear to be the same length, and the third is smaller. Correct?
 2 years ago

strawberry17 Group TitleBest ResponseYou've already chosen the best response.0
To factor the numerator of the top fraction, you would divide each number by 3 and get: 3(10x^2 + 9x +2)
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
no, the fracton bar on the top is supposed to be in the middle, i.e. it should be the top fraction normal bar, then solid black bar, then bottom fraction normal. @strawberry17 how would i do that?
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
\(\Huge \frac{30x^2+27x+6}{9x^249} \div\frac{30x+15}{30x70}\) \(\Huge =\frac{30x^2+27x+6}{9x^249} *\frac{30x70}{30x+15}\)
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
its supposed to be: \[\frac{30x^2+27x+6}{9x^2−49}\] over with the solid black line, \[\frac{30x+15}{30x−70}\]
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
Like I put, Andriod?
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
i don't understand what you did.
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
One fraction divided by another fraction.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
i don't know. i tried to put it like it is in the book. thats what it says,
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
yes, but i get very confused with fraction.
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
Okay, Andriod, when we divide by a fraction, it's the same as multiplying by the reciprocal. That is, \(\div 2\) is the same as \(\large *\frac{1}{2}\) \(\large \div\frac{2}{3}\) is the same as \(\large *\frac{3}{2}\)
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
etc. So when we see \(\huge\div \frac{30x+15}{30x70}\) it's easier for us if we rewrite it as \(\huge *\frac{30x70}{30x+15}\)
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
ik that much, but i don't know what to do wit hthe FRACTIONS, i.e. i know the KFC method, but what/how do i factor the fraction?
 2 years ago

strawberry17 Group TitleBest ResponseYou've already chosen the best response.0
@andriod09 do you understand how I factored out 3 from the numerator of the top fraction?
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
What does KFC stand for?
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
K=keep F=flip C=change @strawberry17 i have not a clue.
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
Andriod, look for a common factor. With \(30x^2 + 27x + 6\) you can notice that 30=3*10 27= 3*9 6= 3*2 so they have a common factor of 3.
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
I agree, Strawberry. Rewriting it is good, but it's good to keep it factored as it is.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
i don't understand. \[:(\]\[:L\]\[:/\]
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
yes. i undertand what factoring is. I don't konw how to factor a fraction. hence, why this post is here.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
FACTORING A FRACTION IS ALL I DO NOT KNOW. I KNOW HOW TO FACTOR SOMETHING LIKE THIS: \[x^2+327\]
 2 years ago

SmoothMath Group TitleBest ResponseYou've already chosen the best response.0
Factoring a fraction is not different from factoring normally. Just look at the top and factor it normally. Then look at the bottom and factor it normally.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
I DON'T KNOW HOW. :/
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
I DON'T KNOW HOW TO FACTOR A FRACTION.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
just tell me how to do this problem please, i am getting really annoyed.
 2 years ago
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