Question

Answer 1

\(a,\left(-12\right).\left(-4\right)=\left(-1\right).\left(-1\right).12.4=1.48=48\\ b,\left(-120\right):10=-\left(120:10\right)=-12\\ c,\left(-23\right).\left(-5\right)=\left(-1\right).\left(-1\right).23.5=1.115=115\\ c2,\left(-60\right):3.\left(-11\right)=-\left(60:3\right).\left(-11\right)=-20.\left(-11\right)=\left(-1\right).\left(-1\right).20.11\\ =1.220=220\\ d,\left(-140\right):\left(-7\right).\left(-15\right)=20.\left(-15\right)=-300\\ e,\left(-18\right).9:\left(-6\right)=-\left(18.9\right):\left(-6\right)=-162:\left(-6\right)=162:6=27\)

Answer 2

cảm ơn thầy

Answer 3

Việt Nam mãi đĩnh