Answer
$10 x^{7} y^{9}$
Work Step by Step
$(2x^{3}y^{2})(5x^{4}y^{7})$
To multiply monomials, multiply coefficients and add exponents
$= 2\times 5 \times x^{3+4}\times y^{2+7}$
$=10 x^{7} y^{9}$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.3 - Page 51: 142
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