(3x+1)(x+2)
49x2 - 84x + 36 = (7x - 6)(7x - 6) or (7x - 6)2
The sum of the coefficients is 3 - 7 + 4 = 0 so (x - 1) is a factor. Thus, 3x2 - 7x + 4 = 3x2 - 3x - 4x + 4 = 3x(x - 1) - 4(x - 1) = (3x - 4)(x - 1)
3(7x-6)
While it is possible to factor 3x2 from both of these and get 3x2(4 - 1), it's a lot easier to subtract 3x2 from 12x2 and get 9x2
3x2+7-6 = (3x-2)(x+3) when factored
3x2-7x-20 = (3x+5)(x-4) when factored
(3x - 5)(x + 4)
Start by dividing by 2: 2(3x2 + 7x - 6) = 2(3x - 2)(x + 3)
(3x+1)(x+2)
3x2 - 7x - 20 = (3x + 5)(x - 4)
3(0)^2+7(x)-12 = -12
21x3-35x2+14x = 7x(3x2-5x+2)
-29
3x2-7x+4 = (3x-4)(x-1) when factored
(21x3-23x2-76x-32)/(7x+4) = [3x2(7x4) -5x(7x+4)-8(7x+4)]/(7x+4)=3x2-5x-8
49x2 - 84x + 36 = (7x - 6)(7x - 6) or (7x - 6)2