Question

find a and b if

1) abi = 3 a - b + 12i

give me the answer by step by step ​

Answer 1

Answer:

a=2,b=6 and a=-2,b=-6

Explanation:

We start with abi=3a-b+12i

find the value of a and b

abi= 3a-b+12i

Comparing on both sides =

ab=12 and 3a-b=0

3a-b=0

3a=b

$a=\frac{b}{3}$

Substitute the value of $a$ then we get

$\frac{b}{3} * b= 12\\b^{2} =36\left[/txe] < /p><p> [tex]b^{2}= \sqrt{36}$

b=6

b=6 then

$a=\frac{6}{3}=2$

b=-6 then

$a=\frac{-6}{3}=-2$

Answer a=2,b=6 and a=-2,b=-6