Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 10 - Radical Functions and Equations - 10.3 - Solving Radical Equations - Exercises - Page 566: 70

Answer

a) $\sqrt{2x+3}=\sqrt{4x-3}$ b) $x=3$

Work Step by Step

a) The required equation will be: $$\sqrt{2x+3}=\sqrt{4x-3}$$ b) The $x$-coordinate of the intersection point is $x=3$. This is the solution of the equation. Check if the solution is correct: $$\sqrt{2(3)+3}\stackrel{?}{=}\sqrt{4(3)-3}$$ $$\sqrt{9}\stackrel{?}{=}\sqrt{9}$$ $$3=3\checkmark$$
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