2 years ago

If a=5+2i, b=-3+i and c=4i(2+3I), determine ab+c in simplest a+bi form

Mathematics

1 answer:

Nady [450]2 years ago

5 0

Answer:

-29+7i

Step-by-step explanation:

(5+2i)(-3+i)

-15+5i-6i+2i²

i²=-1

Simplify

-17-i

Add c

c=4i(2+3i)

=8i+12i²

=8i-12

-17-i+8i-12

-29+7i

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$\bf ~~~~~~ \textit{Simple Interest Earned Amount}\\\\
A=P(1+rt)\qquad 
\begin{cases}
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