x- 1 x =3,x^ 4 - 1 x^ 4 =?
Answers
Answered by
0
Step-by-step explanation:
x
2
+
x
2
1
=7
Now, (x
2
+
x
2
1
)
2
=x
4
+
x
4
1
+2
or 7
2
=x
4
+
x
4
1
+2
or 49=x
4
+
x
4
1
+2
∴x
4
+
x
4
1
=48−2=47
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