3/(x-2)=2a/x+4/(x^2-2x)无解 求a
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3/(x-2)=2a/x+4/(x^2-2x)无解 求a
3/(x-2)=2a/x+4/(x^2-2x)无解 求a
3/(x-2)=2a/x+4/(x^2-2x)无解 求a
3/(x-2)=2a/x+4/(x^2-2x)同分得3X=2a(X-2)+4
X=(4-4a)/(3-2a)
分母为0无解
3-2a=0
a=3/2
a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+3
已知,集合A={x|(x+2)(3-x)>0},B={x|x的平方-4x+a
已知a(x*x+x-c)+b(2x*x-x-2)=7x*x+4x+3x.求a,b,c的值
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8(2) 已知x+3/(x-2)^2=A/x-2 + B/(x-2)^2 ,求A和B的值.
x/a^2-bx+x/b=1 (a,b不等于0)x-8/x-3-x-9/x-4=1/x+3-1/x+8
*-----------------------------------------------*| 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 ||
matlab中a(x)=x^4+3x^3+9x-18 b(x)=x^5-4x^3-18x+7 c(x)=x^7+6x^5+9x^3-5x^2-2 d(x)=x^9-8x^7+6x^5-4x^4+d(x)=x^9-8x^7+6x^5-4x^4+6x^2+3 求e(x)=a(x)*b(x)*c(x)*d(x)
( A/X-5 ) + ( B/X+2 ) = 5X-4/X^2-3X-10 ^-^
一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X
已知A={X|X^2-4x+3
A={X|X^2-4X+3》0}咋解
设集合A={x|x^2-4x+3
集合A={x│x^2+3x-4
设A={x|x^2-4x+3
设A={x|x^2-4x+3
设集合A={x|x^2-4x+3
设A={x|x-4x^2+3
初一分式加减1.2/(x-1)-(x+1)/(x-1)2.2a/(a^-4)-1/(a-2)3.3x/(x-3)^2+x/(x-3)4.【2a/(x-2)-x(x+2)】*(x^2-4)/x