( A/X-5 ) + ( B/X+2 ) = 5X-4/X^2-3X-10 ^-^

x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1) 5x+1=A(x-2)+B(x-1) 如果x^2-5x-6=(x+a)(x+b),那么a+b= b+x分之a+x加a+x分之b+x等于2分之5, 若(x+a)(x+2)=x²-5x+b,求a,b的值 (a-b)^5x(b-a)^3+(a-b)^2x(a-b)^6 ( A/X-5 ) + ( B/X+2 ) = 5X-4/X^2-3X-10 ^-^ 4x+1/(x-2)(x-5)=a/x-2+b/x-5 a(x)/b(x)导数是[a'(x)b(x)-a(x)b'(x)]/b(x)^2//怎么推导 5x+15/x^2+x-6=A/x-2+B/x-3 已知：(4x+1)/(x-2)(x-5)=A/(x-5)+B/(x-2),则A= ,B=已知：(4x+1)/(x-2)(x-5)=A/(x-5)+B/(x-2),则A= ,B= 计算：a²/a-b-a-b/b²；3x/x-5-2x/5-x. 已知A=X^-10X+5 B=-X^-5X A+B=?A-2B? 已知(3x-22)/(x+2)(x-5)=a/(x+2)-b/(x-5),则a+b=_ 已知：4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值? 已知:4x+1/(x-2)(x-5)=A/x+5+B/x-2,求A,B的值 已知4x+1/(x-2)(x-5)=A/x-5 - B/x-2,求A-B的平方根 A/(x-5)+B/(x+2)=(5x-4)/(x的平方-3x-10)求A,B