
Kevin F. answered 11/13/13
Tutor
5
(3)
Computer Programming and Mathematics Tutor
(9x3 + 4x2 - 5) + (5x3 - 4x + 9)
9x3 + 4x2 - 5 + 5x3 - 4x + 9
9x3 + 5x3 + 4x2 - 4x - 5 + 9
14x3 + 4x2 - 4x + 4