# 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

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> 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       Log On

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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)   (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)   (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