3x2 + 27x +60
-8x + 3x2 - 3
3x2 + 48 + 192 = 3x2 + 240 = 3 (x2+ 80)
3x2+13x-10 = (3x-2)(x+5) when factored
(x + 2y)(3x + 8y)
(x + 1)(3x + 5)
Just looking at it, one factor is 3.
3x2+7-6 = (3x-2)(x+3) when factored
(3x+1)(x+2)
3(x + 1)(x + 2)
x3 - 3x2 + x - 3 = (x2 +1)( x - 3)
x3 - 3x2 + x - 3 = (x - 3)(x2 + 1)