Answer
$x^2-y^4$
Work Step by Step
RECALL:
$(a+b)(a-b) = a^2-b^2$
Use the formula above to have:
$(x+y^2)(x-y^2)
\\=x^2 - (y^2)^2
\\=x^2-y^4$
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 10.4 - Special Products - Exercise - Page 352: 23
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