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If a^2+b^2+2b + 4a + 5=0, then the value...

If `a^2+b^2+2b + 4a + 5=0`, then the value of `(2a-3b)/(2a+3b)` is equal to:
यदि `a^2+b^2+2a + 4a + 5=0`, `(2a-3b)/(2a+3b)` का मान ज्ञात करें :

A

`1//7`

B

`2//7`

C

`3//7`

D

`2//5`

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