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Byju's Answer
Standard XII
Mathematics
Complex Numbers
If x3+3x3x2...
Question
If
x
3
+
3
x
3
x
2
+
1
=
189
61
then find the value of
x
?
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Solution
We have,
x
3
+
3
x
3
x
2
+
1
=
189
61
61
(
x
3
+
3
x
)
=
189
(
3
x
2
+
1
)
61
x
3
+
183
x
=
567
x
2
+
189
61
x
3
−
567
x
2
+
183
x
−
189
=
0
Then,
We get
x
=
9
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1
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