factor out a 3x 3x(x-3)=3x2-9x
(9x + 12) / 3 = 3x+4 ■
3 / 9x+63 / 3(3x+2)1 / 3x+2
If that's -9x^3 - 3x^2 + 3x + 1, that factors to (1 - 3x^2)(1 + 3x)
3x2-9x-30 =3x2+6x-15x-30 =3x(x+2)-15(x+2) =(3x-15)(x+2) OR 3(x - 5)(x+2)
-3x+9x can be simplified to 6x
3x2-9x = 0 x(3x-9) = 0 x = 0 or x = 3
x3 + 3x2 - 9x + 5 = 0 has roots of -5,1 and 1. CHECK : x3 + 3x2 - 9x + 5 = (x + 5)(x - 1)(x - 1)
No. It is 9x, which is a monomial.
3x2 - 9x - 912 = 3(x2 - 3x - 304) = 3(x - 19)(x + 16).
(x - 3x - 6) / 6 = (3x + 2) / 3 ∴3x - 9x - 18 = 18x + 12 ∴3x - 9x - 18x = 12 - 18 ∴-24x = -6 ∴ x = 1/4
9x2 + 3x / 3x equals (3x + 1).9x2 + 3x divided by x is 9x + 3 , and then divided by 3 yields the 3x +1.