Hi

Stuck of a few Quadratic equations, just thought i may be able to get some help off here?

Heres the questions:

1) X^2 + 9X + 20 = 0

2) X^2 +5X -36 = 0

If anyone can help it will be much appreciated, also if you can show working it will be even better as i might be able to get to grips with it.

thanks