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Home > CC4 > Chapter A > Lesson A.1.9 > Problem A-97

A-97.
  1. Paris is trying to solve the equation 3x2 − (2x − 4) = 3 + 3x2 + 1. Her work is partially recorded below. Copy her table and fill in her missing work to solve for x. Homework Help ✎

  2. Left Expression

    Right Expression

    Explanation

    3x2 − (2x − 4)

    3 + 3x2 + 1

    Starting expressions.

    3x2 + (−2x) + 4

    3 + 3x2 + 1

    Remove 3x2 from both sides.

    −2x

    0

    Divide both sides by –2.

Solve the parentheses on the left.

Remove 4 from both sides.

x = 0