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Back to 9.8 Solve Quadratic Inequalities

9.8 Exercise 125

Avg difficulty 2.5

Solve by using the method of factoring, the square root principle, or the Quadratic Formula. Round your answers to the nearest tenth, if needed.

A rectangular piece of plywood has a diagonal which measures two feet more than the width. The length of the plywood is twice the width. What is the length of the plywood’s diagonal? Round to the nearest tenth.

OpenStax Intermediate Algebra 2e, 9.8 Solve Quadratic Inequalities, exercise 125

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Adapted from Intermediate Algebra 2e © 2020 Rice University. Licensed under CC BY 4.0. Source: Intermediate Algebra 2e. Imported at revision 77a933c.