Question

Write the complex number (2-3i) (3+4i) in the form A+iB

Answer 1

Answer:

A = 18   B = - 1

Step-by-step explanation:

Given To simplify

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

Sol :

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

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

= 6 + 8i - 9i - 12i²

= 6 - i -12(-1)

= 6 - i + 12

= 18 + (-1)i

Therefore A = 18  and B = -1

FORMULAE

i² = - 1

HOPE IT HELPS

Answer 2

Answer:

A=18

B=-1

I hope it's help for you