Answer:
=14
Explanation:
1/x=1/7+4root x7-4 root
7-4root3=7²-1(4root)²=7-4root3
49-48
then
1/2=7-4root 3
x+ 1/x=7x4 cross out root 3+7-4
=7+7=14
I think that the answer
x/7=4
x = 7 × 4
x = 28
......
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