求解方程（x-2500）[（2900-x）/50×4+8]=5000_数学解答

求解方程（x-2500）[（2900-x）/50×4+8]=5000

人气：426 ℃　时间：2020-05-08 01:27:37

解答

( x - 2500 )[ ( 2900 - x ) / 50X4 + 8 ] = 5000-( x - 2500 )( x - 2900 ) /200 + 8( x - 2500 ) = 5000-( x" - 2500x - 2900x + 2900X2500 ) /200 + 8x - 20000 = 5000-( x" - 5400x + 725 0000 ) /200 + 8x - 25...