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ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
@jim_thompson5910 Help?
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
hint: 54k^2  24 6(9k^2  4)
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
Where did you get the 9k^2 in the second line?
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
I factored out 6 from the expression
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
54k^2  24 6*9k^2  6*4 6(9k^2  4) .. using the distributive property
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
@jim_thompson5910 oh okay I get it, but then there's no number that multipies to give 4 and adds to 9? thats where im stuck at
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
from here, you would use the difference of squares rule to factor
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
and 9k^2  4 is really 9k^2 + 0k  4 so you need to find two numbers that multiply to 9*(4) = 36 and add to 0, then you factor by grouping or you can use the difference of squares rule to factor
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
the difference of squares rule?
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
difference of squares a^2  b^2 = (a  b)(a+b)
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
ex: 25x^2  49 (5x)^2  (7)^2 (5x  7)(5x + 7) So 25x^2  49 factors to (5x  7)(5x + 7)
 11 months ago

timo86m Group TitleBest ResponseYou've already chosen the best response.1
dw:1376179696291:dw
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
im sorry im still confuse by this
 11 months ago

timo86m Group TitleBest ResponseYou've already chosen the best response.1
basically it has to do with common factors
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
did you see my factoring example with 25x^2  49
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
so use that to factor 9k^2  4
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
Following your example so far I've got (3K)^2(2)^2
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
@jim_thompson5910
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
keep going
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
I got (3x2)(3x2) ?? @jim_thompson5910
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
close, very close
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
but not quite
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
where did i go wrong?
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
the difference of squares rule is a^2  b^2 = (a  b)(a+b)
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
notice how it's minus, then plus (not two minuses)
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
it's NOT a^2  b^2 = (a  b)(ab)
 11 months ago

ineedyouubiebs Group TitleBest ResponseYou've already chosen the best response.1
so then its (3x2)(3x+2)
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
good
 11 months ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
the final answer is 6(3k2)(3k+2)
 11 months ago
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