If you mean: 2x2+15x+25 then it is (2x+5)(x+5)
2x2 + 21x + 49 = 2x2 +14x +7x + 49 = 2x(x + 7) + 7(x + 7) = (2x + 7)(x + 7)
2x2+9x+9 = (2x+3)(x+3) when factored
-2x3 + 2x2 + 12x = -2x(x2 - x - 6) = -2x(x2 + 2x - 3x - 6) = -2x[ x(x + 2) - 3(x + 2) ] = -2x(x - 3)(x + 2)
x3 + 2x2 - 35x = x(x + 7)(x - 5)
If you mean: 2x2+15x+25 then it is (2x+5)(x+5)
(2x+7)(x+7)
2x2+21x+49 = (2x+7)(x+7)
-2x3 + 2x2 + 12x =(-2x) (x2 - x - 6) =(-2x) (x+2) (x-3)
2x2 + 21x + 49 = 2x2 +14x +7x + 49 = 2x(x + 7) + 7(x + 7) = (2x + 7)(x + 7)
2x2+9x+9 = (2x+3)(x+3) when factored
x(x + 5)(x - 7)
-2x(x + 3)(x - 2)
A Quadratic statement
-2x3 + 2x2 + 12x = -2x(x2 - x - 6) = -2x(x2 + 2x - 3x - 6) = -2x[ x(x + 2) - 3(x + 2) ] = -2x(x - 3)(x + 2)
I assume your problem is: -2x3-2x2+12x-2x(x2-x-6)-2x(x-3)(x+2)
(2x + 7)(x - 2)