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happykiddo
 2 years ago
please show how to factor......
28n^4+ 16n^3− 80n^2
happykiddo
 2 years ago
please show how to factor...... 28n^4+ 16n^3− 80n^2

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amytincan
 2 years ago
Best ResponseYou've already chosen the best response.1the smallest factor of the coefficients is 4, and the smallest factor of the n is n^2.

happykiddo
 2 years ago
Best ResponseYou've already chosen the best response.0yeah 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)

amytincan
 2 years ago
Best ResponseYou've already chosen the best response.1okay 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

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

happykiddo
 2 years ago
Best ResponseYou've already chosen the best response.0where did the n+2 come from?

amytincan
 2 years ago
Best ResponseYou've already chosen the best response.1its a factor of the trinomial. http://patrickjmt.com/factoringtrinomialsaquadratictrinomialbytrialanderror/

happykiddo
 2 years ago
Best ResponseYou've already chosen the best response.0ok i'll check it out if i have questions may i ask you.

happykiddo
 2 years ago
Best ResponseYou've already chosen the best response.0thanks for the help : )
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