Question

Simplify the expression to a + bi form:
(3+10i)-(-12-8i)

Answer 1

15+18i
Once u know it you will say how did u not know this

Answer 2

15 + 18i

Explanation:

(3 + 10i) - (-12 - 8i) = 3 + 10i - 12*(-1) - 8i*(-1)

= 3 + 10i +12 + 8i

= 3 + 12 + 10i + 8i {Combine like terms}

= 15 + 18i