\(-4.\left(+5\right).\left(+8\right)=-1.5.8=-160\)
\(-1.8.\left(-2\right)=16\)
\(5.\left(-7\right).3=-150\)
\(2.\left(+3\right).\left(+7\right)=2.3.7=42\)
`-4.5.8=-160`
`-7.8.(-2)=7.8.2=112`
`5.(-7).3=-105`
`2.3.7=42`
\(-4.\left(+5\right).\left(+8\right)=-160\)
\(-7.8.\left(-2\right)=112\)
\(5.\left(-7\right).3=-105\)
\(2.\left(+3\right).\left(+7\right)=42\)