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?

2 answers

if the answer is negative it has no real # of solutions; if it is positive it has 2 real # of solutions; if its 0 it means 1
2x quared+-4=0