Perform the indicated operations on the resulting expressions if the given changes are made in the indicated examples of this section.

In Example 2(b), change the sign before 6.2j from − to +, and then perform the multiplication.

Data from Example 2(b)

(-9.4 - 6.2j)(2.5 +1.5j) = (-9.4)(2.5) + (-9.4)(1.5j) +(-6.2j)(2.5) + (-6.2j)(1.5j) = -23.5 14.1j - 15.5j - 9.3j = -23.5 - 29.6j - 9.3(-1) = -14.2 29.6j -