\(-27.49+27.\left(-51\right)=27.\left(-49\right)+27.\left(-51\right)=27.\left(-49-51\right)=27.\left(-100\right)=-2700\)
\(=27\left(-49+-51\right)\)
\(=27.\left(-100\right)=-2700\)
Chúc bn hok tot~
-27 . 49 + 27 . (-51)
= 27 . ( -49 ) + 27 . ( -51 )
= 27 . [ ( -49 ) + ( -51 ) ]
= 27 . ( -100)
= -2700.
#Học tốt.