化简8x+(x/50-50)(x-3500)=29000
1/50x^2-112x+175000=29000
1/50x^2-112x+146000=0
方程乘2得,1/25x^2-224x+292000=0
(1/5x-560)^2-313600+292000=0
(1/5x-560)^2=21600
解得x=正负30根号6+2800
sorry,电脑没摄像头,都是手打的
谁会解这个方程,8x+x(x-3500)/50-20000-50(x-3500)=9000
化简8x+(x/50-50)(x-3500)=29000
1/50x^2-112x+175000=29000
1/50x^2-112x+146000=0
方程乘2得,1/25x^2-224x+292000=0
(1/5x-560)^2-313600+292000=0
(1/5x-560)^2=21600
解得x=正负30根号6+2800
sorry,电脑没摄像头,都是手打的