先化簡,在求值,(X-2-X+2分之5)/2x*4分之x-3

先化簡,在求值,(X-2-X+2分之5)/2x*4分之x-3


,(X-2-X+2分之5)/ 2x+4分之x-3
=[(x-2)(x+2)-5]/(x+2)×2(x+2)/(x-3)
=(x²;-9)/(x+2)×2(x+2)/(x-3)
=(x+3)(x-3)/(x+2)×2(x+2)/(x-3)
=2(x+3)
=2x+6