Question

the positive value of x for which equation 1 - x square by 1 + x square is equal to minus 4 by 5​

Answer 1

Answer:

±2.

Step-by-step explanation:

Given,

5+x  

2

 

x  

2

−9

​

=−  

9

5

​

 

or, 9x  

2

−81=−5x  

2

−25

or, 14x  

2

=56

or, x  

2

=4

or, x=±2.

So the positive value of x is 2.