3(x + 4)(x + 1)
3x
The LCM is 45x3
x + 5; provided, of course, that x ≠ -10.
-3x + 6 + 15x =11x + 8 ie -3x + 15x - 11x = 8 - 6 ie x = 2
3x2 + 15x + 6 = 3*(x2 + 5x + 2). There are no further rational factors.
3(x + 4)(x + 1)
-15x2+5x=-5x(3x-1)
5x(3x + 1)
3(2x - 1)(x - 2)
3x
3x(x^2 - 5)
15x squared plus eleven
9x squared-15x squared = -6
You can't factor it
x + 10
x + 5