(1)(2a+b-1)(2a-b+1) (2)(3x+2)(x-1)=3(x+1)(x-1)
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
若分式4X-9/3x平方-x-2=A/3x+2-B/X-1(A B为常数),则A B的值?
繁分式 已知(x²+x-3)\[(x-1)(x-2)(x-3)]=A\(x-1)+B\(x-2)+C\(x-3
数学题目(因式分解)3x^2-2x+1/39(a+b)^2+30(a-b)(a+b)+25(a+b)^2(x^2-2x)
已知集合A={X丨x²-3X+2=} B={X丨x²+2(a+1)x+(a²-5)=0}
设集合A={x|x²-3x+2=0},B={x|x²+2(a+1)x+(a²-5)=0}
设集合A={X|X²-3X+2=0},B={X|X²+2(a+1)X+(a²-5)=0}
设集合A={x|log½(x²-7x+14)>-2},B={x|a^(x-3)≤(1/a)^(2x-
3x-1\x²-3x+2=(A\x-1)+(B\2-x),则A= B=?
1.已知3x-4/(x-1)(x-2)=A/x-1+B/x-2,求实数A,B.
若A=2x的平方-3x+1,B=x方+3x+2,求2(A+B)÷(A-2B)
已知:X^a=4,X^b=9.求(1)X^a-b(2)X^3a-2b