B=3003x30013001-3001x30033003
=> B = 0
\(B=3003.30013001-3001.30033003\)
\(B=3003.3001.10001-3001.3003.10001\)
\(B=0\)
\(B=3003\times30013001-3001\times30033003=3003\times3001\times10001-3001\times3003\times10001\)
\(=3003\times3001\times10001\times\left(1-1\right)=3003\times3001\times10001\times0=0\)
B=3003x30013001-3001x30033003
=3003x3001x10001-3001x3003x10001
=0
Chúc bạn học giỏi nha!!!