You can put this solution on YOUR website! Quadratic equations always have a solution.
Sometimes the solution is complex.
Do you have a specific example in mind??
You can put this solution on YOUR website! First you make sure that you can't solve it by looking at exactly what the problem is. If you understand what the problem is and you can solve it try to make it a simpler problem that you can solve then look at the differences between the problem you can solve and the problem you can't solve.
You can put this solution on YOUR website! ask for help, post the question on here, ask your teacher, ask your parents, ask a freind, read the book, practice similar problems....