Answer
$y^4-3y^3-19y^2+42y-20$
Work Step by Step
$(y^2-6y+4)(y^2+3y-5)$
Multiplying the polynomials:
$=y^4+3y^3-5y^2-6y^3-18y^2+30y+4y^2+12y-20$
$=y^4-3y^3-19y^2+42y-20$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Prerequisites - P.3 - Polynomials and Special Products - Exercises - Page 31: 65
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