#### Answer

$2.94 m^3+6.02mn^2$

#### Work Step by Step

By multiplying each term of the polynomial by the factor $1.28m$, and then adding the products, we have
$$
1.28m(2.3m^2 + 4.7n^2)=1.28m(2.3m^2) +1.28m( 4.7n^2)\\
=2.94 m^3+6.02mn^2
.\\
$$

Published by
Brooks Cole

ISBN 10:
1285199197

ISBN 13:
978-1-28519-919-1

$2.94 m^3+6.02mn^2$

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