SOLUTION: Factoring Trinomials by Trial and Error b) y=-2x2 + 28x - 26 with the factorial form c) y=-9x2 + 72x + 81 with the factorial form

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Question 57343: Factoring Trinomials by Trial and Error
b) y=-2x2 + 28x - 26 with the factorial form
c) y=-9x2 + 72x + 81 with the factorial form
Found 2 solutions by Nate, CrazyMan Jr.:
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
You can easily do it by trail and error, but you can also look at my example if you get fed up with it.
2x^2 - 14x + 24
2(x^2 - 7x + 12)
2(x^2 - 4x - 3x + 12)
2((x^2 - 4x) + (-3x + 12))
2(x(x - 4) - 3(x - 4))
2(x - 3)(x - 4)
(2x - 6)(x - 4)

Answer by CrazyMan Jr.(21) About Me  (Show Source):
You can put this solution on YOUR website!
b)-2x^2+28x-26 ~~~ m*n = -13 ~~~ 13*-1
-2(^2+14x-13) ~~~ m-n = 14 ~~~ 13+1
c)-9x^2+72x+81 ~~~ m*n = 9 ~~~ 9*1
-9(x^2+8x+9) ~~~ m-n = 8 ~~~ 9-1

J-Man