Math, asked by anshikam505, 22 days ago

lf x(5 + √7) is a rational number, then x must be equal to

(a) 5+√7

(c) √7+√5

(b) √7-5

(d) 7+√5

Answers

Answered by user351123

0

Answer:

(a) 5+√7 is a rational number..

Answered by dsk75

0

Answer:

(b) $\sqrt{7} - 5$

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