183k views
0 votes
Solve the quadratic function by completing the square 2x^2+8x+14=0

1 Answer

2 votes


2x^2+8x+14=0 \\\\x^2+4x+7=0\\\\x^2+4x+4+3=0\\\\(x+2)^2=-3\\\\x+2=√(-3) \vee x+2=-√(-3)\\\\x=-2+\sqrt3i \vee x=-2-\sqrt3 i

User Vlad Stefanescu
by
6.0k points