Question

a)\(\frac{3}{x-5}=\frac{-4}{x+2}\)

b) \(\frac{x-3}{-2}=\frac{-8}{x-3}\)

Answer 1

mk chi biet cau b) thui a!

b) x-3/-2 = -8/x-3

=> (x-3)^2 = 16

=> (x-3)^2 = (+-4)^2

=> x-3=+-4

=> x=7;-1

Vay x=4hoac -1 

Answer 2

thế (x-3) mu 2 hay la ji vay