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ineedyouubiebs
 one year ago
Factor the polynomial: 54k^224
ineedyouubiebs
 one year ago
Factor the polynomial: 54k^224

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

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

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

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

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.054k^2  24 6*9k^2  6*4 6(9k^2  4) .. using the distributive property

ineedyouubiebs
 one year ago
Best 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

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0from here, you would use the difference of squares rule to factor

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0and 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

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

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

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0ex: 25x^2  49 (5x)^2  (7)^2 (5x  7)(5x + 7) So 25x^2  49 factors to (5x  7)(5x + 7)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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