I have opened the image you uploaded. Let me extract the mathematical content and solve the problems visible on it. I'll now proceed to interpret and provide solutions for the visible equations or exercises.The image appears to show a screenshot of a math-related problem set, potentially from an online platform, with several algebraic equations and expressions.

Here is a breakdown of the problems and their solutions based on the image:

Problem 1:

It shows something like: $\frac{5}{x^2 - 4x + 4}$ This expression seems to need factoring or simplification.

Solution: The denominator $x^2 - 4x + 4$ is a perfect square trinomial, which factors as: $x^2 - 4x + 4 = (x - 2)^2$ Thus, the expression