the answer is x(3+y)
It is: 3(x+2)
(x + 2)(x + 1)
(x-1)(2x+5)
Factorise it: (x + 5)(3x - 8)
x2 + 2x - 15 = x2 - 3x + 5x - 15 = x(x - 3) + 5(x - 3) = (x + 5)(x - 3)
6x^3 + 3x = 3x(2x^2 + 1)
6x^2 + 5x + 1 = (3x +1) (2x + 1)
12x2 - 7x + 1 = 12x2 - 4x - 3x + 1 = 4x(3x - 1) - 1(3x - 1) = (3x - 1)(4x - 1)
(x+5)(x+3)
6x + 9x^3 = 3x*(2 + 3x^2)
It is 3(2y+5) when factorised