CPM Homework Banner

Home > INT2 > Chapter 5 > Lesson 5.2.4 > Problem 5-100


Solve the following quadratic equations. Be sure to check your solutions.

  1. Draw an area model and diamond. Generic rectangle labeled as follows: Interior upper right box is negative 42. Interior lower left box is X squared. Diamond problem: Left blank, Right blank, Top 42, x squared, Bottom negative 13, x.

    Factor. Added to the rectangle: Interiors: upper left, negative 6, x, & lower right, negative 7, x. Exteriors: left edge, top, negative 6, & bottom, x, bottom edge, left, x, & right, negative 7. Added to the diamond problem: Left negative 6, x, Right negative 7, x.

    Make sure you find the other solution.

  1. There are only two terms, so factor using the GCF.

  1. Notice that each term is a multiple of .