Answer
$s^3+5s^2+2s-8$
Work Step by Step
Use the FOIL method:
$(s+2)(s^2+3s-4)=s\cdot s^2+s\cdot 3s+s\cdot(-4)+2s^2+2\cdot 3s+2\cdot(-4)=$
$=s^3+3s^2-4s+2s^2+6s-8=s^3+5s^2+2s-8$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 10 - Radical Functions and Equations - 10.3 - Solving Radical Equations - Exercises - Page 566: 86
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