Question

What are the solutions of 3x^2 + 6x + 6 = 0?
Answer

A. 1 ± i

B. –1 ± i

C. –2 ± 2i

D. –2 ± i What are the solutions of 3x^2 + 6x + 6 = 0?
Answer

A. 1 ± i

B. –1 ± i

C. –2 ± 2i

D. –2 ± i @Mathematics

Answer 1

SIMPLIFY:
x^2 + 2x + 2 = 0

x = -2 +-sqrt(4 - 4*1*2) / 2

Answer 2

divide by 3 first to start with
\[x^2+2x+2=0\] then
\[x^2+2x=-2\]
\[(x+1)^2=-2+1=-1\]
\[x+1=\pm\sqrt{-1}\]
\[x+1=\pm i\]
\[x=-1\pm i\]

Answer 3

Thank you!!