If (4-x)/(2+x) = x, what is the value of x2 + 3x -4?

If (4-x)/(2+x) = x, what is the value of x² + 3x -4?

A -1

B 0

C 1

D 2

Correct Answer: Option B

(4−x)/(2+x)=x

or,(4−x)/(2+x)=x

or, ( 4−x) =x X (2+x)

or,( 4−x) =2x+x2

or, 4−x=2x+x2

or, x2+3x−4=0