2.56.24 -3.36.16+4.4.12.95- 6.3.8.5
= 2.7.4.2.3.2.4-3.6.6.4.4 +4.4.3.4.5.19 - 3.2.3.4.2.5
= (4.4.3).2.2.7.2 - (4.4.3).2.3.2.3 + (4.4.3).2.2.5.19 - (4.4.3).3.5
= (4.4.3). (2.2.7-2.3.2.3+2.2.5.19-3.5)
= (4.4.3). [(2.2).(7.2-3.3+5.19)-3.5]
= 48.(4.100-15)
= 18480