3g3 + 6g2 – g – 7 Subtract Polynomials Add the inverse. Example: (4x2 + 5) – (-2x2 + 4x -7) (Add the inverse.) = (4x2 + 5) + (2x2 – 4x +7) = 4x2 + 5 + 2x2 – 4x + 7 (Group like terms and add.) = (4x2 + 2x2) – 4x + (5 + 7)
3g3 + 6g2 – g – 7 Subtract Polynomials Add the inverse. Example: (4x2 + 5) – (-2x2 + 4x -7) (Add the inverse.) = (4x2 + 5) + (2x2 – 4x +7) = 4x2 + 5 + 2x2 – 4x + 7 (Group like terms and add.) = (4x2 + 2x2) – 4x + (5 + 7)