X(X+1)-5X=0

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X(X+1)-5X=0

X(X+1)-5X=0
X(X+1)-5X=0

X(X+1)-5X=0
X(X+1-5)=0
X1=0
X2=4

X=0

x为0和4

X(X+1)-5X=0 若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂) *-----------------------------------------------*| 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 || 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 x.x-5x+1=0,那么x.x+1/x.x x²-4x+1=0;x(x-1)=42,求x值, 3≤|8-x| |x+1|>2-x |x+3|7|x+1| x^2-6|x|+9>0 |x-1|+|x+2|≥5 (1)方法 提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1 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 (2x-2)(x-1)=0 x(x-5)=5x-10 已知1/√(x)+√(x)=√5,求√(x/x2+x+1)+√(x/x2-x+1)的值定义域 x>0,两边平方,x+2+1/x=5,x+1/x=3,x^2-3x+1=0,x^2+x+1-4x=0,x^2+x+1=4x,x^2-x+1-2x=0.x^2-x+1=2x,√[x/(x^2+x+1)]-√[x/(x^2-x+1)]=√[x/(4x)]-√[x/2x]=√(1/4)-√(1/2) 分式不等式解法(x-1)(x-3)(x+5)/(x+2)(x-3)(x-1)>0x-1)(x-3)(x+5)/(x+2)(x-3)(x-6)>0 1、1/2x=2/x+32、x/x+1=(2x/3x+3)+13、2/x-1=4/x²-14、5/x²+x-1/x²-x=0 一元二次方程解答!x(5x+4)=5x+44x^2-45=31x-3x^2+22x-24=0(x+8)(x+1)= -12(3x+2)(x+3)=x+14 求下列方程两根的和与积;x²-3x+2=105x²+x-5=0x²+x=5x+6(2x-1)²=(3-x)² ﹣(x²-5-4x)-x(x²+x-1),其中x=-1.先化简再求值 x²-5x+1=0 5/x²+x-1/x²-x=0