Question

What is the solution to x^2 + 6x +7

Answer 1

D)
`(-6\pm√(8) )/(2)`

Explanation:

`x^2+6x+7=0`

`x=(-b\pm√(b^2-4ac) )/(2a)`

`x=(-6\pm√(6^2-4(1)(7)) )/(2(1))`

`x=(-6\pm√(36-28) )/(2)`

`x=(-6\pm√(8) )/(2)` <-- correct option but not simplified fully

`x=(-6\pm2√(2))/(2)`

`x=-3\pm√(2)`