\(27\left(-53\right)+27\left(-47\right)\\ =27\left[\left(-53\right)+\left(-47\right)\right]\\ =27\cdot\left(-100\right)\\ =-2700\)
\(27.\left[\left(-53\right)+\left(-47\right)\right]=27.\left(-100\right)=-2700\)
\(27.(-53)+27.(-47)\)
\(= 27 [ ( − 53 ) + ( − 47 ) ]\)
\(=\)\( 27 ⋅ ( − 100 ) = − 2700\)