Answer
$(y^{2}+7)(y^{2}-10)$
Work Step by Step
Step 1: $y^{4}-3y^{2}-70$
Step 2: $y^{4}+7y^{2}-10y^{2}-70$
Step 3: $y^{2}(y^{2}+7)-10(y^{2}+7)$
Step 4: $(y^{2}+7)(y^{2}-10)$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Section 6.2 - Factoring Trinomials of the Form x2+bx+c - Exercise Set - Page 428: 16
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