Question

MULTIPLYING COMPLEX NUMBERS

Multiply. Write the answer in standard form.

(3 - 2i)(4 + 1)

Answer 1

(3 - 2i)(4 + 1)

=3(4 + 1 ) +(-2i)(4 + 1)

=3(4 + 1 ) -2i(4 + 1)

=12 + 3 -8i - 2i

= 15 - 10i