X2-y2:x-y,если x=4,y=2

Question

X2-y2:x-y,если x=4,y=2

Answer 1

4^2-2^2:4-2=16-4:4-2=16-1-2=13

Answer 2

X2-y2:x-y,если x=4, y=2;

4×8-2×2:4-2=32-4:4=32-1=31