#### Answer

$36i-32$

#### Work Step by Step

$4i\left( 2+5i\right) \left( 2-i\right) =4i\left( 4-2i+10i-5i^{2}\right) =4i\left( 4+8i-5\times \left( -1\right) \right) =4i\left( 9+8i\right) =36i+32i^{2}=36i+32\times \left( -1\right) =36i-32$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$36i-32$

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