Answer
$-30x^6y^3+6x^3y^4-21x^2y$
Work Step by Step
$-3x^2y(10x^4y^2-2xy^3+7)=\\=-3x^2y\cdot10x^4y^2-3x^2y\cdot(-2xy^3)-3x^2y\cdot7\\=-30x^6y^3+6x^3y^4-21x^2y$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 5 - Section 5.2 - Multiplication of Polynomials - Exercise Set - Page 337: 20
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