Question

solve x^2+6x+7=0 using the quadratic formula

Answer 1

\[ax^2+bx+c=0\qquad \Longrightarrow \qquad x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\]

Answer 2

do you understand how to do it now?

Answer 3

sure; you just have to match the equation given with the first one i wrote, hence find a,b,c,
plug them into the second equation i wrote, and then simplify