Question

please help it's very urgent​

Answer 1

$\frac{3 - {x}^{2} }{8 + {x}^{2} } = \frac{ - 3}{4} \\ 4(3 - {x}^{2}) = - 3(8 + {x}^{2} ) \\ 12 - 4 {x}^{2} = - 24 - {3x}^{2} \\ 12 + 24 = - 3 {x}^{2} + 4 {x}^{2} \\ 36 = {x}^{2} \\ x = \sqrt{36} \\ x = ±6$

Hence, option 1 is correct.

Answer 2

Answer:

$\frac{3 - {x}^{2} }{8 + {x}^{2} } = \frac{ - 3}{4} \\ - 3(8 + {x}^{2}) = 4(3 - {x}^{2}) \\ - 24 - 3 {x}^{2} = 12 - 4 {x}^{2} \\ - 36 = {x}^{2} \\ + - 6 = x$

the value 6 can be either - or + ...

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