Answer
$4x^2-4x+1$
Work Step by Step
Recall:
$(a-b)^2=a^2-2ab+b^2$
Use the formula above with $a=2x$ and $b=1$ to obtain:
\begin{align*}
(2x-1)(2x-1)&=(2x-1)^2\\
&=(2x)^2-2(2x)(1)+1^2\\
&=4x^2-4x+1
\end{align*}
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 4 - Quadratic Functions and Equations - 4-5 Quadratic Equations - Practice and Problem-Solving Exercises - Page 231: 74
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