计算(6x^4-5x^3-3x^2-x+4)/(2x+4)

x/x-3-5x/x^2-x-6计算 计算:x/x-2 - 5x/x²-x-6计算:x/x-3 - 5x/x²-x-6 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 计算（x*x+4x+5）/（x+2）-（x*x+6x+10）/（x+3）+1 计算:[(x^2 - 4)/(x^2 - x - 6) + (x+2)/(x-3)] / (x+1)/(x-3) 计算：(x^2+6x+10)/(x^2+6x+9)+(x^2-11)/(x^2-9)+(2x^2+8x+5)/(x^2+4x+3) 计算5(x^2+x-3)-4x(6+x)+x(4-x)=02x(x-1)-x(2x-5) 计算(6x^4-5x^3-3x^2-x+4)/(2x+4) 计算:(4x^4-6x^2+2)(5x^3-2x^2+x-1), 2x*4x-3x计算 计算:[(x+2)/(x+3) - (x+1)/(x+2) + (x+4)/(x+5) - (x+3)/(x+4) / (x^2 + 7x + 13)/(x^2 + 8x + 15) 计算(x-2)(x-3)+2(x+6)(x-5)-3(x平方-7x+13) 计算：(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7 x^2+x-6分之x^2+3x-x^2-4分之x+2计算 计算x^2-5x+6/x^2-1/x^2+x/x-3 计算：(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程 用简便方法计算 （x-2)(x-3)+(x-4)(x-5)+(x-2)(x-4)+(x-3)(x-5) 计算(x+2)/(x+1) - (x+3)/(x+2) + (x+4)/(x+3) - (x+5)/(x+4)