Question

How do you simplify (10−2i)+(−11−7i)?

Answer 1

Answer:

Step-by-step explanation:

10(-11-7i) -2 i (-11-7i)

-110-70i+22i+17i^2

17i^2 -48i -110

This is a quadratic eqn

Solve by quadratic formula where a=17 ,b=-48, c= -110

.°. X = -b +or - root of b^2-4ac divided by 2a

Substitute by substituting