Which of the equations are true identities? A. (x-2y)^2=x^2-4xy+4y^2 B. (m+1)^2-m^2=1

The solution set for 5v2 – 125 = 0 is

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?