I have a parabola with the equation $y = x^2 + 6x + 7$ and I am trying to calculate the $x$-intercept points.
Here is my working so far...
- let $y = 0$,
- $x^2 + 6x + 7 = 0$
- $x(x + 6) = -7$
After this I have no idea where to go next. Any help is appreciated.