(1):(2X-Y-3)^2 (2):59.8*60.2 (3)198^2 (4):4(X+1)^2-(2x+5)(2X
去括号并合并同类项(1)3x-2(x+7)+2(2x+5) (2)(4x-3y)-[-(3y-x)+(x-y)]-5x
化简1) (-2x^ y^)(3x^ y^)(-4x^ y^)2) (6√x)\(3√x√x^5)3)已知函数f(x)的
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(3x-y)²-2x(4x-5y)-(x+2y)²
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
若2x-3y+4=0则x(x*x-1)+x(5-x*x)-6y+7
(x+y)-(x+y)平方 因式分解 解方程 2x²=3x (3x-1)² - 4=0 5x-15x
化简 (x+y)(x²-xy+y²) ; 3(2x-1)(x+6)-5(x-3)(x+6)
(x+2)(x+3) (x-4)(x+1) (y+4)(y-2) (y-5)(y-3)
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4