Simplify the expression and solve the equation. show all calculations

First of all, we can observe that

Then, we can rationalize the denominator by using the formula

If we multiply both numerator and denominator by [/tex]\sqrt{8}+3[/tex] we have

We can also observe that

And the expression simplifies into

idk but i found this "the graph of y = f(x-2) is the graph of y = f(x) translated two units rightward.  

so, since the point (9,2) lies on the graph of y = f(x), the point (11,2) lies on the graph of y = f(x-2)."

step-by-step explanation:

link is