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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
good
 one year ago

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