Answer
$(5y+2)^2$
Work Step by Step
For the polynomial
$$
25y^2 +20y +4
$$
one can see that this is a perfect square. We use the perfect square factoring formula:
$(a+b)^2=a^2+2ab+b^2$
That is,
$$
25y^2 +20y +4=(5y+2)^2
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 10 - Section 10.6 - Factoring General Trinomials - Exercise - Page 356: 20
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