x/(x-5) + x/(x+2) = 2 হলে, x = ?
Solution
Correct Answer: Option D
{x/(x-5)}+{x/(x+2)}=2
or,(x2+2x+x2-5x)/{(x-5)(x+2)=2
or,(2x2-3x)/{(x-5)(x+2)=2
or,2x2-3x/(x2+2x-5x-10)=2
or,2x2-3x/(x2-3x-10)=2
or,2x2-6x-20=2x2-3x
or,-3x=20
∴ x=-20/3
or,(x2+2x+x2-5x)/{(x-5)(x+2)=2
or,(2x2-3x)/{(x-5)(x+2)=2
or,2x2-3x/(x2+2x-5x-10)=2
or,2x2-3x/(x2-3x-10)=2
or,2x2-6x-20=2x2-3x
or,-3x=20
∴ x=-20/3
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