Answer
$28s^3+19s^2-8s+15$
Work Step by Step
$(4s+5)(7s^2-4s+3)$
Foil:
$=7s^2(4s+5)-4s(4s+5)+3(4s+5)$
Simplify:
$=28s^3+35s^2-16s^2-20s+12s+15$
$=28s^3+19s^2-8s+15$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - Chapter Test - Page 539: 10
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