How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution?

Question

saifoo.khan · Answer

We use discriminant to find it.

b^2 - 4ac 
is the formula.

anonymous · Answer

$$ax^2+bx+c=0$$if$$\Delta= b^2 - 4ac >0$$ then it has 2 real solution
if $$\Delta=0$$ then it has one solution it means roots are the same..(double roots)

anonymous · Answer

if $$\Delta <0$$
then it has no real solution, it means it has complex solution..

directrix · Answer

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