Question

Solve 1-x²/1+x²=-4/5​

Answer 1

Answer:

Solve 1-x²/1+x²=-4/5​

Step-by-step explanation:

by cross multiply

then

5(1-x^2)=-4(1+x^2)

5-5x^2=-4-4x^2

5+4=x^2

x^2=9

x=-3,  3

Answer 2

Step-by-step explanation:

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