Giai cac phuong trinh sau ( help me please )
a)x+5/x^2-5x-x-5/2x^2+10x=x+25/2x^2-50
b)x+10/9+x+21/2=x+3/16+x+23/4
c)x-1/x+2-x/x-2=5x-2/4-2x^2
Loga
Sinh Học lớp 12
