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Solve for x : (2x)/(x-3)+1/(2x+3)+(3x+9)/((x-3)(2x+3)) = 0, x!=3 - Mathematics

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प्रश्न

Solve for x

`(2x)/(x-3)+1/(2x+3)+(3x+9)/((x-3)(2x+3)) = 0, x!=3,`

योग

उत्तर

Given:

`(2x)/(x-3)+1/(2x+3)+(3x+9)/((x-3)(2x+3))=0`

`=>(2x(2x+3)+(x-3)+3x+9)/((x-3)(2x+3))=0`

⇒ 4x2 + 6x + x 3 + 3x + 9 = 0

⇒ 4x2 + 10x + 6 = 0

⇒ 4x2 + 4x + 6x + 6 = 0

⇒ 4x(x + 1) + 6(x + 1) = 0

(x + 1) (4x + 6) = 0

x + 1 = 0 or 4x + 6 = 0

`=>x=-1,-3/2`

But 

`x !=-3/2`

Thus, x = 1 is the solution of the given equation.

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