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happykiddo
Group Title
please show how to factor......
28n^4+ 16n^3− 80n^2
 one year ago
 one year ago
happykiddo Group Title
please show how to factor...... 28n^4+ 16n^3− 80n^2
 one year ago
 one year ago

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amytincan Group TitleBest ResponseYou've already chosen the best response.1
the smallest factor of the coefficients is 4, and the smallest factor of the n is n^2.
 one year ago

happykiddo Group TitleBest ResponseYou've already chosen the best response.0
yeah i know and the answer is supposed to be 4n^2(7n10) (n+2)..........but how do i get that after in factor out 4n^2 and factored further and have 4n^2(7n^210n+14n20)
 one year ago

amytincan Group TitleBest ResponseYou've already chosen the best response.1
okay backing up 4n^2(7n^2+4n20) , working on the trinomial in the parentesis you need to find two numbers when multiplied equal 20 and when added equal 4. You have a coefficient in front of n^2, so you have to take that into consideration. A good thing to do is to take the factored answer and FOIL it to see how it turns into the trinomial inside the parenthesis
 one year ago

amytincan Group TitleBest ResponseYou've already chosen the best response.1
(7n10)(n+2) =7n^2+14n10n20 Do you see it?
 one year ago

happykiddo Group TitleBest ResponseYou've already chosen the best response.0
where did the n+2 come from?
 one year ago

amytincan Group TitleBest ResponseYou've already chosen the best response.1
its a factor of the trinomial. http://patrickjmt.com/factoringtrinomialsaquadratictrinomialbytrialanderror/
 one year ago

happykiddo Group TitleBest ResponseYou've already chosen the best response.0
ok i'll check it out if i have questions may i ask you.
 one year ago

happykiddo Group TitleBest ResponseYou've already chosen the best response.0
thanks for the help : )
 one year ago
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