(-1998)*(1-345)-345*1998
=-1998(1-345+345)
=-1998.1
=-1998
\(\left(-1998\right).\left(1-345\right)-345.1998\)
\(=-1998\left(1-345+345\right)\)
\(=-1998.1\)
\(=-1998\)
Trả lời:
\(\left(-1998\right).\left(1-345\right)-345.1998\)
\(=\left(-1998\right).\left(1-345+345\right)\)
\(=(-1998).1\)
\(=-1998\)
Hok tốt!
Vuong Dong Yet