(√x-3)^2+√x^2-4x+4化简
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/26 05:47:33
x)x1BX3HĊ356y3"}
RPUv6DlΧ۟~d]}vIA3Zl!
;[cΆ'VAuk[ tO?k[(tX,VtU$ف< Dl!
(√x-3)^2+√x^2-4x+4化简
(√x-3)^2+√x^2-4x+4
化简
(√x-3)^2+√x^2-4x+4化简
根号下大于等于0
则x-3>=0
x>=3
所以x>2
x-2>0
则|x-2|=x-2
原式=x-3+√(x-2)^2
=x-3+|x-2|
=x-3+x-2
=2x-5
*-----------------------------------------------*| 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 ||
xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1
[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简
化简:x-2x+3x-4x+5x-.+2011x-2002x
化简:X-2X+3X-4X+5X-……+2001x-2002x
化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4
3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简
化简:(x-1)(x+2)(x-3)(x+4)+24
化简 (x+1)(x+2)(x+3)(x+4)-8
化简:2√(9x)/3+6√(x/4)-2x√(1/x)
化简:2√(9x)/3+6√(x/4)-2x√(1/x)
化简[√(2x-7)]`2-2√(4-4x+x`2)+|x-3|
(6√x/4-2x√1/x)÷3√x 化简
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
解方程4x^2+2x√(3x^+x)+x-9=0
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)
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)
化简:1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)