Question

Solve 2x2 + 12x = -10 by completing the square

Answer 1

You mean \[2x^{2} + 12x = -10\]
?

Answer 2

Then

\[x ^{2} + 6x= -5\]
\[x ^{2} + 6x + 9 = 4\]
\[(x + 3)(x + 3) = 4\]
\[(x + 3)^{2} = 4\]
\[x + 3 = 2\]

Answer 3

x = -1

Answer 4

yes that's what I meant! thanks so much(: