# How do you simplify #i(1+i) #?

##### 1 Answer

Feb 10, 2016

i - 1 = - 1 + i

#### Explanation:

first step : distribute the bracket

hence i(1 + i ) =

# i + i^2 # now

# i^2 = (sqrt-1)^2 = -1 # and so i(1 + i ) = i - 1 = -1 + i