Question

Show whether the following equations can be written into quadratic equation or not. Explain how you arrived at your answer. then answer the equations that follow.

EQUATIONS:(explaintions of equations)
$\frac{z}{x} - \: \frac{x}{4} = \frac{1}{2}$
$\frac{2x}{x + 1} = \frac{1}{x - 1} - \frac{2}{ - x + 1}$
$\frac{1}{x - 3} + \frac{x}{x - 2} = \frac{1}{x^{2} - 5x + 6 }$
QUESTIONS:
1. Which among the problem is/are quadratic equations.
2. What is your basis in identifying if an equation is quadratic or not?
3. Can you find the solutions of each of the equations above how?

please answer it correctly, i really need it.
thank you very much!​

Answer 1

no I don't understand what are the questions