= 75 x (101 -1) + 25 x 99 + 2
= 75 x 100 + 25 x 99 + 2
= 7500 + 25 x 99 + 2
= 7500 + 2475 + 2
= 9975 + 2
= 9977
75.101-75+25.99+2
=75.(101-1)+2475+2
=7500+2477
=9977
75 x 101 - 75 + 25 x 99 + 2 = 75 x 101 - 75 x 1 + 25 x 99 + 2 = 75 x ( 101 - 1 ) +25 x 99 + 2 = 25 x 3 x100 + 25 x 99 + 2 = 25 x ( 3 x 100 + 99 ) + 2 = 25 x 399 + 2 = 9975 + 2 = 9977