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lilMissMindset
Group Title
2C + 3B +6Cx+2A+2Bx+2Cx^2=12x^2
need to determine A, B, C
 2 years ago
 2 years ago
lilMissMindset Group Title
2C + 3B +6Cx+2A+2Bx+2Cx^2=12x^2 need to determine A, B, C
 2 years ago
 2 years ago

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lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
@AnimalAin this
 2 years ago

AnimalAin Group TitleBest ResponseYou've already chosen the best response.1
We do it the same way. Let me work for a second here...
 2 years ago

AnimalAin Group TitleBest ResponseYou've already chosen the best response.1
\[2C + 3B +6Cx+2A+2Bx+2Cx^2=12x^2 \implies\]\[(2A+2C + 3B) +(6C+2B)x+2Cx^2=12x^2 \implies\]\[2C=12 \implies C=6\]\[6C+2B=0 \implies B=18\]\[2A+2C + 3B=0 \implies A=9\]
 2 years ago

AnimalAin Group TitleBest ResponseYou've already chosen the best response.1
The corresponding terms on the left and right sides of the equation have to be the same. So, we match the x^2 coefficients to get C=6, then the x coefficients (note there is none on the RHS, so the LHS has to be zero) to get B=18, then follow the same pattern to get A=9.
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
hey, check A, i think it's 21.
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
really, i'm getting it now, thanks a lot.
 2 years ago

AnimalAin Group TitleBest ResponseYou've already chosen the best response.1
I think it's nine.... 3*62*18=18 implies that A has to be pretty close to nine.
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
you interchanged the value of A and B.
 2 years ago

AnimalAin Group TitleBest ResponseYou've already chosen the best response.1
OOPs!! Hate it when that happens!! Bad substitution!!
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
i noticed as well. it's alright! :D
 2 years ago

AnimalAin Group TitleBest ResponseYou've already chosen the best response.1
You seem to have it now.... even if my arithmetic is lacking. LOL Do math every day.
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
you're still one great teacher! :)
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
sure, i'll do a lot of math everyday. ammm, do you do some DE's?
 2 years ago

AnimalAin Group TitleBest ResponseYou've already chosen the best response.1
A little. What do you have in mind?
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
i'll post it on a new one, so that i can give you another medal.
 2 years ago
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