5x(x²+1) 化简
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5x(x²+1)化简5x(x²+1)化简5x(x²+1)化简=5x^3+5x5x(x²+1)=5x^3+10x^2+5x
5x(x²+1) 化简
5x(x²+1) 化简
5x(x²+1) 化简
=5x^3+5x
5x(x²+1)=5x^3+10x^2+5x
5x(x²+1) 化简
2(x²+6x+1)²+5(x²+1)(x²+6x+1)+2(x²+1)²因式分解
我是这样算的,化简x(x-1)+2x(x+1)-3x(2x-5)=x²-x+2x²+2x-6x²+15x=x+2x²-6x²+15x=18x+2x²-6x²=12x²-6x²可以相减吗,还是我算的不对了?(详细些看不懂耶!)
1、x²+x-12、3x²-x-23、x²-(根号5)x+1
已知关于x的多项式(2mx²-x²+3x+1)-(5x²-4y²+3x)不含x²项
1.(3x²+10x²+13x-27)/(x²+2x-3)2.(2x²+x³-2)/(x²-1)3.已知A=(3x)²-21x³-2x²+11x-2 B=3x³-5x²-4x+1求a²/b²
因式分解,(x²-5)²-16x²
计算:-4x²+[5x-8x²-(-13x²+4x)+2]-1
化简x(x-1)+2x(x+1)-3x(2x-5)我是这一算的,化简x(x-1)+2x(x+1)-3x(2x-5)=x²-x+2x²+2x-6x²+15x=x+2x²-6x²+15x=18x+2x²-6x²=12x²-6x²可以相减吗,还是我算的不对了?
整式乘法..1.3xy(x²y-xy²+xy)-xy²(2x²-xy+2x)2.(x-1)(x²-4x+3)-x(x²-5x+2)
1.169(a+b)²-121(a-b)²2.(x-3)(x-5)+13.(2a-b)²+8ab4.y²-2y-x²+15.x³+3x²-4x-126.6x²+5x-47.(x²-2x)²+2(x²-2x)+18.(x²+3x+3)(x²+3x+5)+19.(m+n)²-4(m+n-1)
计算:3x²-[5x-(1/2x-3)+2x²]
(m²-1)X²+(m²+4m+5)X+5m 因式分解.
因式分解 (x²+y²-1)²-4x²y²
解不等式:(2x-5)²+(3x+1)²>13x(x²-10)
1.(b²+2a²)(2a²-b²) 2.(4x²-4y²)(x²+y²) 3.—(x-1)(x+1)-3(x+2)(x-2) 4.(5y²+4x²)[4y²+(2x-y)(-2x-y)]
解下列方程!就三道!解下列方程.1、x/x-2 - 1-x²/x²-5x = 2x/x-3(x/x-2 - 1-x²不是一起的!)2、5x/x²+x-6 - 5-2x/x²-x-12=7x-10/x²-6x+8(5x/x²+x-6 - 5-2x不是一起的!)3、x-4/x-5 + x-8/x-9=x-7/x-
x²-1分之x²+x,化简x²-6x+9分之x²-9化简...T