(x方+5x+3)平方-2(x方+5x+3)(x方十5x-2)+(x方+5x-2)平方
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(x方+5x+3)平方-2(x方+5x+3)(x方十5x-2)+(x方+5x-2)平方
(x方+5x+3)平方-2(x方+5x+3)(x方十5x-2)+(x方+5x-2)平方
(x方+5x+3)平方-2(x方+5x+3)(x方十5x-2)+(x方+5x-2)平方
设a=x方+5x+3,b=x方+5x-2,则原式变为
a方-2ab+b方=(a-b)方=[(x方+5x+3)-(x方+5x-2)]方=[3+2]方=25
(x方+5x+3)平方-2(x方+5x+3)(x方十5x-2)+(x方+5x-2)平方
4(X方+3X+1)方-(X方+X-4)方-(X方+5X+6)方因式分解
3(x方+6x+1)方+5(x方+6x+1)(x方+1)+2(x方+1)方
因式分解x的5方-x的4方+x的3方-x的2方+x-1,
((3/2x方+xy-3/5y方)*(-4/3x方y方)
(3/2x方+xy-3/5y方)*(-4/3x方y方)
化简-(x方-2xy-y方)+(5x方-2xy-3y方)
几道因式分解.x方-2x-3 x方+7x-18 x方-3x-4 x方+5x-6 x方-13x+36 2x方+3x+1
因式分解 1.x方-5x+3 2.x方-2根2x-3 3.3x方+4xy-y方 4.(x方-2x)方-7(x方-2x)+12
x方+3=2X方
2(6X方+X)方-11(6X方+X)+5X四次方-10X方+9X三次方-7X方+12X(X+Y)方+2(X+Y)-15A四次方-21A方-100(X方+X)方-14(X方+X)+24X方(X-1)-Y方(X-1)
(3x方+5)(-3x方+5)-x方(7x+8)(7x-8)-(8x)方 其中x=-2
x方-1分之5-x方+2x-3分之4=x方+4x+3分之2
4x方+3xy平方-5x平方y方+y,是几次几项式
因式分解 (a方+b方-1)方-4a方b方1.(x方-x)方-14(x方-x)+242.(x方-5x)(x方-5x-2)-243.(x-y)n次方-(x-y)n-3次方4.(1-a方)(1-b方)-4ab
用秦九韶算法求多项式f(X)=7X方+6X方+5X方+4X方+3X方+2X方+X当x=3时的值
求3x方-2{x-5[x-3(x-2x方)-3(x方-2x)]-(x-1)}的值,其中x=2
.(x-1)/(x方+3x+2),(5+x)/(x方-x-6),(x-7)/(x方-2x-3)把它们通分