9x(x2+3x-10)
* * * * *
9x3 + 27x2 - 90x = 9x(x2 + 3x - 10)
= 9x(x + 5)(x - 2).
The GCF is 27.
No 9xx-18x+36 9(xx-2x+4) xx-2x+4 (doesn't factor evenly)
The GCF is 3x
3x + 1)(3x - 4)
a2 + 28a + 27 = 0 (a + 1)(a + 27) = 0 a = -1 or -27 However, the second line is the factorised form, the third is what a is equal to
= 53 9x3 + 9x2 + 5x1+ 3x1 27 + 18 + 5 + 3
(-3x - 1)(3x - 7)
9x2 + 9x - 10 =(3x - 2)(3x + 5)
Factor: 9x2 - 25.
3x
(3x - y)(3x - y)
9x2 + 12x + 4 = 9x2 + 6x + 6x + 4 = 3x(3x + 2) + 2(3x + 2) = (3x + 2)(3x + 2) = (3x + 2)2
(3x + 4)(3x + 4)
9x2+11x-14 = (9x-7)(x+2) when factored with the help of the quadratic equation formula.
(3x - y)(3x - 5y) and (2x + 1)(2x + 11)
9x2 + 8x - 1 = (9x - 1)(x + 1)
9x2 - 18x + 99(x2 - 2x + 1)==========