9x(x2+3x-10)
* * * * *
9x3 + 27x2 - 90x = 9x(x2 + 3x - 10)
= 9x(x + 5)(x - 2).
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Divide the entire equation by 9. (9x2 + 27x + 18)/9 would then be 9(x2 + 3x +2)
The factors of this equation would be 9(x + 1)(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