(2x-2)(x²+3x-1)怎样计算

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(2x-2)(x²+3x-1)怎样计算(2x-2)(x²+3x-1)怎样计算(2x-2)(x²+3x-1)怎样计算=2x³+6x²-2x-2x&sup

(2x-2)(x²+3x-1)怎样计算
(2x-2)(x²+3x-1)怎样计算

(2x-2)(x²+3x-1)怎样计算
=2x³+6x²-2x-2x²-6x+2
=2x³+4x²-8x+2

因式分解:(x²-2x)²-3x²+6x 2.(2X²-3X+1)²-22X²+33X-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 3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b)²÷(1/a²-1/b²) (3x&su3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b)²÷(1/a²-1/b²) (3x²/4y)²×2y/3x+x²/2y²÷2y²/ (2)(x-2)(x+2)-(x+1)(x-3)(3) (ab+1)²-(ab-1)²(4)(2x-y)²-4(x-y)(x+2y) (x²-4分之x²+x+1)²÷(x三次方-3x²+2x÷x三次方)²×(x÷x+2)² , 函数配方f(X)=-2X²+3X-2,f(X)=3X²+6X-1 先化简,再求值:2x(3x²-4x+1)-3x²(2x-3),其中x=-3 计算极限x→2,limx²-3x+2/x²-4, 25(x-1)²-9(2x+3)²=0 用因式分解 1、解关于x的方程:a(x²+1)=4x²+22、√(x+11)=1-x3、(5x/x²-9)+(5/x+3)=1+(x/x-3)4、(x²+2/2x²-1)-(6x²-3/x²+2)+2=0x+2y=125、{x&s 已知:5x²-3x-5=0,求5x²-2x-1/5x²-2x-5的值要用分式的加减 化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了!是三个分式!(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x) 1、(3x²-2x²+5x-2)-( )=4x³-x²+52、如果xy²-2x²y²+3x²Y是x²y²-2x²y减去另一个多项式所得到的差,求另一个多项式.3、已知三角形的周长是(3x&sup 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 已知,多项式(2ax²-x²+3x+2)-(5x²-4x²+3x)值与x无关,求2a²-[3a²+(4已知,多项式(2ax²-x²+3x+2)-(5x²-4x²+3x)值与x无关,求2a²-[3a²+(4a-5)+a的值 计算:3x²-[7x-(4x-3)-2x²]