how to solve this answer (999)^3
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Answered by
1
(1000-1)³
• (a-b)³=a³-b³-3xy-(a-b)
= (1000)³-(1)³-3×1000×1 (1000-1)
= 1000000000-1-3000(1000-1)
= 1000000000-1-3000000+3000
= 997002999
confusinggirl:
is it ryr?
ryt
Answered by
2
Answer:
(999)³=(1000-1)³
we know that,
(a-b)³=a³-b³-3a²b+3ab²
=(1000)³-(1)³-3.(1000)².1+3.1000.(1)²
=1000000000-1-3000000+3000
=1000003000-2999999
=997003001
is it ryt
yesss whyy
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