without actual multiplication evaluate 95 cube
Answers
Answered by
4
=(100-5)^3
=100^3-5^3-3×100×5(100-5)
=1000000-125-1500 (95)
====857375 is urgent answer
Answered by
4
95 cube = (100 -5) or (90+5)
Now,
90+5 cube= Acube + 3AsquareB +
3ABsquare + Bcube
So, =》 (90 ×90×90) +3 ×(90×90)×5 + 3×90×5×5 + (5×5×5)
=》729000 +121500 +6750 +125
= 857375
hope it will help you .......
Similar questions