Perform the indicated operation using the standard form. $$- 6 i ( 1 + i )$$
A) $- 6 i ( 1 + i ) = 6 - 6 i$
B) $$- 6 i ( 1 + i ) = 12 - 6 i$$
C) $$- 6 i ( 1 + i ) = 6 + 12 i$$
D) $- 6 i ( 1 + i ) = 6 - 12 i$
E) $- 6 i ( 1 + i ) = 6 + 6 i$

Question

Perform the indicated operation using the standard form.​ $$- 6 i ( 1 + i )$$ ​
A) $- 6 i ( 1 + i ) = 6 - 6 i$
B)​ $$- 6 i ( 1 + i ) = 12 - 6 i$$
C)​ $$- 6 i ( 1 + i ) = 6 + 12 i$$
D)​ $- 6 i ( 1 + i ) = 6 - 12 i$
E)​ $- 6 i ( 1 + i ) = 6 + 6 i$

Quizplus · Accepted Answer

Multiplying $-6i$ by $1+i$ gives $-6i - 6i^2$. Since $i^2 = -1$, this simplifies to $-6i + 6$, which is $6 - 6i$.

Perform the Indicated Operation Using the Standard Form −6i(1+i)- 6 i ( 1 + i )−6i(1+i)

Perform the Indicated Operation Using the Standard Form $- 6 i ( 1 + i )$