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If
x
-
= 7, find the value of
x
3
-
.
Given:
x
-
= 7
Using, (a-b)
3
= a
3
- b
3
- 3ab(a-b), we get
6
= 7, find the value of x3-
.
= 7
= 7, find the value of x3-.= 7