X2 plus 4x-6 equals 0

Answer 1

Assuming that by writing that equation as a question, you mean to ask how to solve it for x, that can be done as follows:

x2 + 4x - 6 = 0

x2 + 4x + 4 = 10

(x + 2)2 = 10

x + 2 = √20

x = -2 ± √20