In this section we introduced methods of solving equations quadratic in form by substitution and solving equations

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In this section we introduced methods of solving equations quadratic in form by substitution and solving equations involving radicals by raising each side of the equation to a power. Suppose we wish to solve x - √x - 12 = 0. We can solve this equation using either of the two methods. To see how both methods apply. Let u = √x and solve the equation by substitution.

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College Algebra

ISBN: 978-0134697024

12th edition

Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

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