#### Answer

$x^{75}y^{40}$

#### Work Step by Step

RECALL:
$\dfrac{a^m}{a^n} = a^{m-n}, a\ne0$
Use the rule above to obtain:
$=x^{100-25} y^{50-10}
\\=x^{75}y^{40}$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

$x^{75}y^{40}$

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