Answer:ty
Step-by-step explanation:
Remember
difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
and the undistributiv propeoryt
ab-ac=a(b-c)
so we have

undistribute and factor

cancel out the one ( (u-2)/(u-2)=1)

is result
the answer: b=9 hope this helps!
I believe it’s C 5(x+2-3) sorry if i’m wrong