几道因式分解题,能答几题是几题,急⋯⋯1,(x+2)(x+3)(x+4)(x+6)-42x^22,16(x-1)(2x-1)(3x+1)(6x-1)+253,(x^2-1)(9x^2-6x-8)-634,x^2+xy-2y^2+7x+5y+125,a^3+(1-b)a^2-2ba+b^26,x^3+xy+3x+x^2y+x^2+y^2+4y+37,a^2b+a^2c+ac^2-ab^2-b^2c-bc^2

几道因式分解题,能答几题是几题,急⋯⋯1,(x+2)(x+3)(x+4)(x+6)-42x^22,16(x-1)(2x-1)(3x+1)(6x-1)+253,(x^2-1)(9x^2-6x-8)-634,x^2+xy-2y^2+7x+5y+125,a^3+(1-b)a^2-2ba+b^26,x^3+xy+3x+x^2y+x^2+y^2+4y+37,a^2b+a^2c+ac^2-ab^2-b^2c-bc^2
几道因式分解题,能答几题是几题,急⋯⋯
1,(x+2)(x+3)(x+4)(x+6)-42x^2
2,16(x-1)(2x-1)(3x+1)(6x-1)+25
3,(x^2-1)(9x^2-6x-8)-63
4,x^2+xy-2y^2+7x+5y+12
5,a^3+(1-b)a^2-2ba+b^2
6,x^3+xy+3x+x^2y+x^2+y^2+4y+3
7,a^2b+a^2c+ac^2-ab^2-b^2c-bc^2

几道因式分解题,能答几题是几题,急⋯⋯1,(x+2)(x+3)(x+4)(x+6)-42x^22,16(x-1)(2x-1)(3x+1)(6x-1)+253,(x^2-1)(9x^2-6x-8)-634,x^2+xy-2y^2+7x+5y+125,a^3+(1-b)a^2-2ba+b^26,x^3+xy+3x+x^2y+x^2+y^2+4y+37,a^2b+a^2c+ac^2-ab^2-b^2c-bc^2
1,(x+2)(x+3)(x+4)(x+6)-42x^2=(x^2+x+12)(x^2+14x+12)
2,16(x-1)(2x-1)(3x+1)(6x-1)+25=(-3-16x+24x^2)^2
3,(x^2-1)(9x^2-6x-8)-63=(3x^2-x-11)(3x^2-x+5)
4,x^2+xy-2y^2+7x+5y+12=(x+2y+3)(x-y+4)
5,a^3+(1-b)a^2-2ba+b^2=(a-b)(a^2+a-b)
6,x^3+xy+3x+x^2y+x^2+y^2+4y+3=(x^2+y+3)(x+y+1)
7,a^2b+a^2c+ac^2-ab^2-b^2c-bc^2=(a-b)(b+c)(c+a)