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Home > CC3 > Chapter 2 > Lesson 2.1.3 > Problem 2-29

2-29.

Copy and simplify the following expressions by combining like terms. Using or drawing sketches of algebra tiles may be helpful. Homework Help ✎

  1. 2x + 3x + 3 + 4x2 + 10 + x

    Add like terms.

    4x2 + (2x + 3x + x) + (10 + 3)
    4x2 + 6x + 13

    4x2 + 6x + 13

  1. 4x + 4y2 + y2 + 9 + 10 + x + 3x

    It may helpful to rearrange the terms so that all like terms are next to one another before simplifying. Remember to double check your work.

  1. 2x2 + 30 + 3x2 + 4x2 + 14 + x

    Try thinking of these as algebra tiles. Can you combine x2-tiles with x-tiles or unit tiles? If it helps you, you can use algebra tiles to help you solve this problem.

  1. 20 + 5xy + 4y2 + 10 + y2 + xy

    Follow the steps outlined in part (a) and the hints from parts (b) and (c).

    5y2 + 6xy + 30

Use the tiles in the eTool below to write the algebraic expression.
Click the link at right for the full version of the eTool: CC3 2-29 HW eTool