\(a.\left(-3\right).\left(-2\right).\left(-5\right).4=6.\left(-5\right).4=\left(-30\right).4=-120\)
\(\left(-3\right)\cdot\left(-2\right)\cdot\left(-5\right)\cdot4=6\cdot\left(-5\right)\cdot4=\left(-30\right)\cdot4=-120\)
\(\left(-3\right)\cdot\left(-2\right)\cdot\left(-5\right)\cdot4=6\cdot\left(-20\right)=-120\)
(- 3).(- 2).(- 5).4
= 6.(- 5).4
= (- 30).4
= (- 120)
(-3).(-2).(-5). 4
= [(-3).(-2).(-5)].4
= (-30). 4
= -120
=[ (-5) . (-2) ] . [ (-3) . 4 ]
= 10 . (-12)
=-120