x(x+2y)-(x+1)²+2x,其中x=1/25,y=-25
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计算x²-x/x²×x/1-x和x²-4y²/x²+2xy+y²÷x+2y/x²+xy
x²-y²=1{(x-y)²-2(x-y-2)=7
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
1.(8xy-x²+y²)-(x²-y²+8xy)2.(2x²-1/2+3x)-4(x-x²+1/2)3.3x²-[7x-(4x-3)-2x²]
①.X²-2X+1/X²-1 ÷ X²-X/X+1②.a-1/a²-4a+4 ÷ a²-1/a²-4③.x³-x²/x²-x ÷ x²-2x/x-1④.(x-y)²/x+y ÷ 1/y+x X 1/x-y帮下忙嘛 咯
因式分解2x(x-y)^4 - x²(x-y)² + xy(y-x)²RT
在线求助完全平方公式因式分解(1)-a²-1+2a(2)2x²y-x²-xy²(3)4x²-20x+25(4)(x²+1)²-4x²(5)(2x-y)²-2(2x-y)+1(6)(x+y)²-2(x²-y²)+(x-y)²
1-x²+2xy-y²x²-y²+x-y麻烦用因式分解解
[(x-y)²+(x+y)(x-y)]除以2x
x²+|x+2y|+2x=-1 化简【{3x²+2y}{-2y+3x²}-{x²-2y}²+8y²】÷{-2x}²的值
1.(x-2/x+2+6x/x²-4)×(x²-4)2.(1+x²-1/x²-2x+1)÷1/x-13.x²/x²-y²÷1/x+y+y²/y-x4.(1/x+1-1/1-x²)÷3x/x+1
1、(4x²y-2x³)÷(-2x)²2、【(x-y)²+(x+y)(x-y)】÷2x
1.x^4+3x²y²+4y^4 2.x^4+4 3.x²-2x-a²+2a 4.(x+y)²-4x-4y+41.x^4+3x²y²+4y^4 2.x^4+4 3.x²-2x-a²+2a 4.(x+y)²-4x-4y+4 5.x(x-2)-a(a-2) 6.(x+y)²-4(x+y-1)
1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
求几道因式分解1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
x²y²-x²y-xy²+x+y-1因式分解
(x+y)²-2(x²-y²)+(y-x)²
分解公因式 (x+y)²-2(x²-y²)+(x-y)²