evaluate the expression 35³-20³-15³
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Answered by
4
(35)3=
(20)3=8000
(15)=625
ans=31500
sujaramya:
it says using suitable identities
so same steps is it ?
Answered by
3
let a=35 b=-20 c=-15
a+b+c=35-20-15=0
therefore, a cube +b cube + c cube= 3abc
=3*35*-20*-15
=31500
a+b+c=35-20-15=0
therefore, a cube +b cube + c cube= 3abc
=3*35*-20*-15
=31500
mark it brainlist
mark it brainlist please sir
using suitable identities
is it same ?
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