Name:
Anonymous
2011-02-07 13:25
What's this formula for?
x_{1,2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}
Name:
Anonymous
2011-02-07 13:58
Solving equations of the type ax^2+bx+c=0
Name:
Anonymous
2011-02-07 14:36
>>1
This formula is for confusing Calculus 1 students.
Name:
Anonymous
2011-02-07 21:42
It's something very useful, but only once you put it in BASIC form in your calculator. Otherwise simple factorisation is faster.
Name:
Anonymous
2011-02-08 14:56
>>2
yep. Use a calculator to do this mean you are retard