2(x-3)=3x(x-3)
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解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简
(x-1/3x-x+1/x)×x/x²-1 其中x=根号2-2 先化简
(3x/x-1-x/x+1)×x²-1/x 其中x=根号2-2 先化简
(x+1)(x-3)=x(2x+3)-(x²-1)
x(x+2)+x(x-3)
(x/x-2)-2=3(x-2)/x
(x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3)(x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3)
计算 x(x+3)-(x-1)(x-2)
(x-1)^3(x+1)(x-2)/(x+4)
x(x+1)(x+2)(x+3)+1 (换元法)
化简:x(2x+1)-x(x-3)
x(2x-3)=x² 求x,
-(X²+3X)+2(4X+X²)其中X=-2
(-x)^2*x^3
[x(x+1)+x平方(x-1)]+(-3x)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1