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Anil Singh

· started a discussion

· 1 Months ago

shortcut (Question: 257204.0 )

devide by x

Question:

If $x + \frac{7}{x} = 1$ , find the value of $\frac{x^{2} + x + 7}{x^{3} - x^{2}}$ .

Options:

A)

$\frac{2}{7}$

B)

$\frac{- 2}{7}$

C)

– 2

D)

$\frac{- 7}{2}$

Solution:

Ans: (b)

isha mishra

· commented

· 1 Months ago

On dividing with x..Iam ok with numerator but how do you eliminate x from the denominator ....please reply

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