化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3}
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化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3){x＞3}化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x
化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3}
化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3}
化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3}
分步写,好让看的清楚符号
[√(x^2-6x+9)/x^2-x-12]=√(x-3)^2 /(x-4)(x+3）=（x-3)/(x-4)(x+3）；
(x^3-16x)/(x^2-3x)=x(x^2-16)/x(x-3)=(x+4)(x-4)/(x-3）；
原式=(x-3)/(x-4)(x+3）* (x+4)(x-4)/(x-3）-1/(x+3)=(x+4)/(x+3)-1/(x+3)=1
x(x*x-6x-9)-x(x*x-8x-15)+2x(3-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
化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3}
(x^2+3x+9)/(x^2-9)+6x/(9x-x^2)-(x-1)/(6+2x)化简
化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
约分：1、x*x-9/6-2x 2、x*x-1/x-x*x
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
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求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X
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分解因式：x*x*x*x+2*x*x*x-9*x*x-2x+8
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