Question

Which of the following is a solution of x2 + 6x = −18?

x = 3 − 3i

x = −3 + 3i

x = −6 + 3i

x = 6 − 3i

Answer 1

@ramit.dour

Answer 2

x=−3+3i,−3−3i

Answer 3

\(\normalsize\color{blue}{ x^2 + 6x = −18 }\)
\(\normalsize\color{blue}{ x^2 + 6x +9= −9 }\)
\(\normalsize\color{blue}{ (x+3)^2= −9 }\)
\(\normalsize\color{blue}{ x+3= ±3i }\)
\(\normalsize\color{blue}{ x= -3±3i }\)

Answer 4

-3-3i

Answer 5

and ` -3+3i `

Answer 6

oh my bad

Answer 7

well, you already said the correct answer, so no worries :)

Answer 8

haha

Answer 9

:) thanks guys