Philip P. answered 11/02/14
Tutor
4.9
(482)
Effective and Patient Math Tutor
(2x2 - 13x + 7) - (1 - 12x)
= 2x2 - 13x + 7 - 1 + 12x
Gather and combine like terms:
= 2x2 + (-13x + 12x) + (7 - 1)
= 2x2 - x + 6