Answer
$y^3+12y^2+30y-8$
Work Step by Step
$(y+4)(y^2+8y-2)=y(y^2)+y(8y)+y(-2)+4(y^2)+4(8y)+4(-2)=y^3+8y^2-2y+4y^2+32y-8=y^3+12y^2+30y-8$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 10 - Section 10.3 - Multiplying Polynomials - Exercise Set - Page 717: 14
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