数学题7x+4(x²-2)-2(2x²-x+3)
数学题7x+4(x²-2)-2(2x²-x+3)
数学题(X²-3X+2)(X²-X+2)-15X²
(2x-6)/(x²-4x)/(X+3)*( x²+x-6)/(3-x)等于多少?
f(x)=x²+3x|x-2|
八上数学题,因式分解 (x-2)²-x+2
化简{x²-2x分之x+2-x²-4x+4x分之x-1}除以X分之(x-1)(X-4)乘以(2-x)
[(x+2)/(x²+2x)-(x-1)/(x²-4x+4)]÷(x-4)/x
两道初二下册数学题 1、(8/4X²-1) +( 2x+3/1-2x)=1 2( x-2/x-1) / (3/
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
数学题(3x²+2x+1)²-(2x²+3x+3)²
数学题2(x^3)^2*x^2-3(x^2)^4+5x^2*x^6