solve x+1/x =25 1/25
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Answer:
Step-by-step explanation:
Solution :-
Here, we have
⇒ x + 1/x = 25 (1/25)
⇒ x + 1/x = 25 + 1/25
⇒ x² + 1/x = (25 + 1/25)
⇒ x² + 1 = (25 + 1/25)x
⇒ x² - (25 + 1/25)x + 1 = 0
By using factorization method, we get
⇒ x² - (25 + 1/25)x + 1 = 0
⇒ x² - 25x - 1/25x + 25 × 1/25 = 0
⇒ (x² - 25x) - (x/25 - 25 × 1/25) = 0
⇒ x(x - 25) - 1/25(x - 25) = 0
⇒ (x - 25) (x - 1/25) = 0
⇒ x - 25 = 0 or x - 1/25 = 0
⇒ x = 25, 1/25
Hence, x = 25, 1/25.
Alternative method :-
We have
⇒ x + 1/x = 25 (1/25)
⇒ x + 1x = 25 + 1/25
⇒ x = 25, 1/25 [By comparing two sides]
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