how to solve a quadratic equation the short way? (without the formula)?

MyFistGoBoom

New member
example: x^2 - x -6 = 0
=(x-3)(x+2) = 0
=x-3=0 ----> x=3
=x+2=0 ---> x=-2

can someone explain how that works plz?

and try:
x^2 - 6x - 7=0


can someone specificly tell meh how to do the quick way cuzz my teacher says if i get the habit of doing the formula way it will take time in the test which i have been noticing...

so help plzzz =3
 
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