EJEMPLOS

A. 4+1*5pow2-1=
4+1*25-1=
4+25-1=
28

B. 9/3+4pow2-5*1+9/-2+3=
9/3+16-5*1+9/-2+3=
3+16-5-9/2+3=
75/6

C. 5/2+3-4*5/2=
5/2+3-20/2=
-9/2

D. 17/2+3pow2pow2-2*2/2=
17/2+9pow2-(2*2)/2=
5/2+3-10= 17/2+81-2=
175/2