Question

{1+2i)(-2+i)
express it in form of a + bi
and state the value of a and b​

Answer 1

Answer:

jsbbeb usnene

Step-by-step explanation:

euuiqjnebrjej hsudgeow sjgsbd

Answer 2

Step-by-step explanation:

(1+2i)(-2+i)

{-2+i-4i+2i²}

{-2+2i²-3i}

{-2-2-3i} [i²= -1]

(-4-3i)

Here a= -4 and b= -3

#666