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 9 - Solving Quadratic Equations - 9.3 - Solving Quadratic Equations Using Square Roots - Monitoring Progress - Page 499: 5

Answer

$x=\frac{9}{2}$ or $x=\frac{3}{2}$

Work Step by Step

The given equation is $\Rightarrow 4(x-3)^2=9$ Divide each side by $4$. $\Rightarrow \frac{4(x-3)^2}{4}=\frac{9}{4}$ Simplify. $\Rightarrow (x-3)^2=\frac{9}{4}$ Take the square root of each side. $\Rightarrow x-3=\pm\frac{3}{2}$ Add $3$ to each side. $\Rightarrow x-3+3=3\pm\frac{3}{2}$ Simplify. $\Rightarrow x=3\pm\frac{3}{2}$ Two real solutions are $\Rightarrow x=3+\frac{3}{2}$ or $x=3-\frac{3}{2}$ Simplify. $\Rightarrow x=\frac{9}{2}$ or $x=\frac{3}{2}$ Hence, the solutions are $x=\frac{9}{2}$ or $x=\frac{3}{2}$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.