Question

solve the equation . ​

Answer 1

x = 3 and x = -3

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Answer 2

(1-x²)/(1+x²) = -4/5

5(1-x²) = -4(1+x²)

5 - 5x² = -4 - 4x²

9 = x²

x= √9

x = ±3

that is,

value of x is,

x = 3 (or) x = -3