Question

Express the following complex numbers in the form of a + ib:
(7+iX2 – 3i)​

Answer 1

Answer:

hey

Explanation:

We need to saparate real part and imaginary part

(7+I)(2–3i)

We have to multiply both in the form of(a+b)(a-b)

(7+I)(2–3i)

14–21i+2i-3i^2

14–19i-3(—1)

{I^2=—1} I power 2 is equal to —1

14–19i+3

17–19i

Complex number in the form (a+ib)

So we need to convert 17–19i into (a+ib)

-17+19i