Question

Solve the following quadratic equations by completing the square.
a. x^2+ 6x + 7 = 0

Answer 1

x=-3±
`√(2)`

Explanation:

x^2+6x=-7

x^2+6x+9=-7+9

(x+3)^2=2

x+3=±
`√(2)`

x=-3±
`√(2)`