解方程 1.4X^2-256=0 2.4(x-2/1)^2=1 3.-x^2+2x+3=0 4.3x^2+8x-3=0
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/15 02:09:45
解方程 1.4X^2-256=0 2.4(x-2/1)^2=1 3.-x^2+2x+3=0 4.3x^2+8x-3=0 答案是X1和X2=多少,
1.4X^2-256=0
4x^2=256
x^2=64
x1=8,x2=-8
2.4(x-1/2)^2=1
(x-1/2)^2=1/4
x-1/2=1/2,x-1/2=-1/2
x1=1/2+1/2=1
x2=-1/2+1/2=0
3.-x^2+2x+3=0
x^2-2x-3=0
(x-3)*(x+1)=0
x1=3,x2=-1
4.3x^2+8x-3=0
(3x-1)*(x+3)=0
x1=1/3
x2=-3
4x^2=256
x^2=64
x1=8,x2=-8
2.4(x-1/2)^2=1
(x-1/2)^2=1/4
x-1/2=1/2,x-1/2=-1/2
x1=1/2+1/2=1
x2=-1/2+1/2=0
3.-x^2+2x+3=0
x^2-2x-3=0
(x-3)*(x+1)=0
x1=3,x2=-1
4.3x^2+8x-3=0
(3x-1)*(x+3)=0
x1=1/3
x2=-3
(x^2+x)(x^2+x-3)-3(x^2+x)+8=0解方程
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程:2/x^2+x+3/x^2-x-4/x^2-1=0
解方程:(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0
解方程(x²-3x)/(x²-1)+(2x-1)/(x-1)=0
解方程 x(2x-4)+3x(x-1)=5x(x-3)+8
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程(3x^2+9x+7)/(x+1)-(2x^2+4x-3)/(x-1)-(x^3+x+1)/(x^2-1)=0
方程(x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x^2+8x+9)+64=0
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
解方程:2x(x-1)-x(3x+2)=-x(x+2)-12