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Home > CCA > Chapter A > Lesson A.1.8 > Problem A-84

A-84.

Simplify each expression below as much as possible. Homework Help ✎

  1. Flip subtraction to addition.

    3y + −y + 5x + 3 + −7x

    Remove zero pairs.

    2y + −2x + 3

    Remember to remove unnecessary signs
    (Example: x + −2 would be x − 2).

    2y − 2x + 3

  1. Follow the steps described in part (a).

    Remember a negative multiplied by a negative is a positive.

    Remember you cannot add variables with different exponent values. (Example: you cannot add x + x2)

    2x2 + 3x + 6

  1. Follow the steps explained in part (a) and remember the hints in part (b).