3X2 - 3X 3X(X - 1) -----------------------factored, so 3X is gfc
factor out a 3x 3x(x-3)=3x2-9x
3x2 + 2x - 8 = 3x2 + 6x - 4x - 8 = 3x(x+2) - 4(x+2) = (3x-4)*(x+2)
The GCF is 3x.
3x2-9x-30 =3x2+6x-15x-30 =3x(x+2)-15(x+2) =(3x-15)(x+2) OR 3(x - 5)(x+2)
3X2 - 3X 3X(X - 1) -----------------------factored, so 3X is gfc
Since 3x is a factor of 3x^2, it is automatically the GCF.
If that's 3x2 - 7x + 4, the answer is (3x - 4)(x - 1)
factor out a 3x 3x(x-3)=3x2-9x
It is not an equation it is an expression but if it was in the form of 4-x-3x2 = 0 then 3x2 by itself:- 3x2 = 4 -x
3x2 + 5x + 2 is a quadratic expression that can be factored as follows: 3x2 + 5x + 2 = 3x2 + 3x + 2x + 2 = 3x(x + 1) + 2(x + 1) = (3x + 2)(x + 1)
This looks more like a factoring problem than a GCF problem. Since those three terms have nothing in common, the GCF is 1. But as an equation, it factors to (x + 5)(3x + 2)
3x2 + 22x + 7 = 3x2 +21x + x + 7 = 3x(x + 7) + (x + 7) = (x + 7)(3x + 1)
3x2 + 2x - 21 = (3x - 7) (x + 3)
3x2 + 2x - 8 = 3x2 + 6x - 4x - 8 = 3x(x + 2) - 4(x + 2) = (x + 2)(3x - 4).
3x*x = 3x2
3x2 + 2x - 8 = 3x2 + 6x - 4x - 8 = 3x(x+2) - 4(x+2) = (3x-4)*(x+2)