Question

What are the solutions of 3x2 + 15 = -6x? (3 points)
Answer

-1 ± i

-1 ± 2 i

-2 ± i

-2 ± 2 i

Answer 1

-1 ± 2 i

Answer 2

divide by 3
complete the square
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profit

Answer 3

thank y

Answer 4

\[(-b \pm \sqrt{b ^{2}-4ac})\div2a\]
were as a,b,c are coefficients of X^2,x,constant