if x+1/x=12 find x-1/x
rekharr1424:
hey do u mean x+(1/x)
Yes
ok
The ans is -10
no u r wrong
i know the answer but i cant do it
What's the ans then
I may tell the steps
here x+(1/x) not (x+1)/x
i can tell u steps
Answers
Answered by
1
Answer:
The answer is root 140 = 2 root 35
Welcome
Answered by
5
Answer:
√140=2√35
Step-by-step explanation:
we know that
(a+b)²-4ac=(a-b)²
(x+ 1/x)²-4ac=(x- 1/x)²
(x²+2+1/x²)-4×x²× 1/x²=(x- 1/x)²
(12)²-4=(x- 1/x)²
144-4=(x- 1/x)²
140=(x- 1/x)²
Square root both side
2√35=x- 1/x
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