-6x8 + 8x3 + 5x Factorise over integers -6x8 + 8x3 + 5x Factorise out -x (always factorise out a negative when the first term begins with a negative, it causes all the signs to change inside the parentheses). -x(6x7 - 8x2 - 5) That's as far as it will factorise. Edwin