(X+10)/15*(X-15)=2X-10 X=?
1个回答

(X+10)/15*(X-15)=2X-10

(x+10)(x-15)=15(2x-10)

x²-5x-150=30x-150

x²-35x=0

x(x-35)=0

x=0或x=35

验根:经检验x=0或x=35是原方程的根