(-4).125.(-25).(-6).(-8)
= [ 125. (-8)].[(-25).(-4)].(-6)
= (-1000). 100. (-6)
= -100000.(-6)
= 600 000
\(\left[\left(-4\right).\left(-25\right)\right].\left[125.\left(-8\right)\right].\left(-6\right)\)
\(=100.\left(-1000\right).\left(-6\right)\)
\(=6.10^{2+3}=6.10^5\)
\(=600000\)