计算：(7x^2-6x^2+3x)÷3x=

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 计算(x-2)(x-3)+2(x+6)(x-5)-3(x平方-7x+13) *-----------------------------------------------*| 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 || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 计算:[(x^2 - 4)/(x^2 - x - 6) + (x+2)/(x-3)] / (x+1)/(x-3) (x-2)(x+7)-2(3-x)(2+x) 计算 计算：（x+1)(x-2)(x-3)(x-6) 计算(x^2-6x+9）÷(x-3) 计算:(x+2)/(x^2 - x - 6) + 2x/(x^2 - 3x) - x/(x^2 - 6x + 9) x^2-4x+4分之2x-6÷(x-+3)×3-x分之x^2+x-6计算 计算 2x-6／x²-4x+4 ÷（x+3）×x²+x-6／3-x 先化简,再计算2x^-18/4-4x+x^ ÷ 3-x/x^+x-6,其中x=4 计算：(1)/(x-3)÷(x+2)/(x^2-9)-(1)/(x^2+5x+6) 计算：(x-y)^7÷(y-x)^6+(-x-y)^3÷(x+y)^2 计算(x-y)^7÷(y-x)^6+9-x-y)^3÷(x+y)^2 计算：(7x^2-6x^2+3x)÷3x= 计算x^2+6x+9/x^3-7x^2+10x>=0