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Answered by
1
Answer:
B. 8 Is the correct answer.
Answered by
0
Answer:
8
Step-by-step explanation:
Given,
x=1+
2
.
Now,
(x−
x
1
)
3
=(1+
2
−(
1+
2
1
))
3
=[1+
2
−(
2
+1
1
)×(
2
−1
2
−1
)]
3
=[1+
2
−(
2−1
2
−1
)]
3
=[1+
2
−(
2
−1)]
3
=(1+ 2− 2
+1)
3
=2
3
=8.
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