帮忙做几道数学题,要用因式分解的方式,方法为分组分解法. 1.xy-xz+y-z 2.a^2+ab+ac+bc3.ax-2bx+ay-2by4.4xy-3xz+8y-6z5.x^3+3x^2+3x+96.3xy-2x-12y+87.ab-5bc-2a^2+10ac8.5ax+7ay-5bx-7by9.x^3 y+3x-2x^2 y^2-6y10.x^2-a^2-2x-2a11.x^3+x^2 y
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![帮忙做几道数学题,要用因式分解的方式,方法为分组分解法. 1.xy-xz+y-z 2.a^2+ab+ac+bc3.ax-2bx+ay-2by4.4xy-3xz+8y-6z5.x^3+3x^2+3x+96.3xy-2x-12y+87.ab-5bc-2a^2+10ac8.5ax+7ay-5bx-7by9.x^3 y+3x-2x^2 y^2-6y10.x^2-a^2-2x-2a11.x^3+x^2 y](/uploads/image/z/1593479-47-9.jpg?t=%E5%B8%AE%E5%BF%99%E5%81%9A%E5%87%A0%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E8%A6%81%E7%94%A8%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E7%9A%84%E6%96%B9%E5%BC%8F%2C%E6%96%B9%E6%B3%95%E4%B8%BA%E5%88%86%E7%BB%84%E5%88%86%E8%A7%A3%E6%B3%95.+1.xy-xz%2By-z+2.a%5E2%2Bab%2Bac%2Bbc3.ax-2bx%2Bay-2by4.4xy-3xz%2B8y-6z5.x%5E3%2B3x%5E2%2B3x%2B96.3xy-2x-12y%2B87.ab-5bc-2a%5E2%2B10ac8.5ax%2B7ay-5bx-7by9.x%5E3+y%2B3x-2x%5E2+y%5E2-6y10.x%5E2-a%5E2-2x-2a11.x%5E3%2Bx%5E2+y)
帮忙做几道数学题,要用因式分解的方式,方法为分组分解法. 1.xy-xz+y-z 2.a^2+ab+ac+bc3.ax-2bx+ay-2by4.4xy-3xz+8y-6z5.x^3+3x^2+3x+96.3xy-2x-12y+87.ab-5bc-2a^2+10ac8.5ax+7ay-5bx-7by9.x^3 y+3x-2x^2 y^2-6y10.x^2-a^2-2x-2a11.x^3+x^2 y
帮忙做几道数学题,要用因式分解的方式,方法为分组分解法. 1.xy-xz+y-z 2.a^2+ab+ac+bc
3.ax-2bx+ay-2by
4.4xy-3xz+8y-6z
5.x^3+3x^2+3x+9
6.3xy-2x-12y+8
7.ab-5bc-2a^2+10ac
8.5ax+7ay-5bx-7by
9.x^3 y+3x-2x^2 y^2-6y
10.x^2-a^2-2x-2a
11.x^3+x^2 y -xy^2-y^3
12.x^2-y^2+ax+ay
13.x^2-x-9y^2-3y
14.a^2-b^2+4b-4
15.a^2-2ab+b^2-c^2
16.x^2-y^2-z^2+2yz
17.9-4a^2-4ab-b^2
18.-1-2x-x^2+y^2
麻烦要写出过程哦~~今天就要,就在线等~~
帮忙做几道数学题,要用因式分解的方式,方法为分组分解法. 1.xy-xz+y-z 2.a^2+ab+ac+bc3.ax-2bx+ay-2by4.4xy-3xz+8y-6z5.x^3+3x^2+3x+96.3xy-2x-12y+87.ab-5bc-2a^2+10ac8.5ax+7ay-5bx-7by9.x^3 y+3x-2x^2 y^2-6y10.x^2-a^2-2x-2a11.x^3+x^2 y
1.xy-xz+y-z
=x(y-z)+(y-z)
=(y-z)(x+1)
2.a^2+ab+ac+bc
=a(a+b)+c(a+b)
=(a+b)(a+c)
3.ax-2bx+ay-2by
=x(a-2b)+y(a-2b)
=(a-2b)(x+y)
4.4xy-3xz+8y-6z
=x(4y-3z)+2(4y-3z)
=(4y-3z)(x+2)
5.x^3+3x^2+3x+9
=x^2(x+3)+3(x+3)
=(x+3)(x^2+3)
6.3xy-2x-12y+8
=x(3y-2)-4(3y-2)
=(3y-2)(x-4)
7.ab-5bc-2a^2+10ac
=a(b-2a)-5c(b-2a)
=(b-2a)(a-5c)
8.5ax+7ay-5bx-7by
=a(5x+7y)-b(5x+7y)
=(5x+7y)(a-b)
9.x^3 y+3x-2x^2 y^2-6y
=x(x^2y+3)-2y(x^2y+3)
=(x^2y+3)(x-2y)
10.x^2-a^2-2x-2a
=(x+a)(x-a)-2(x-a)
=(x-a)(x+a-2)
11.x^3+x^2 y -xy^2-y^3
=x^2(x+y)-y^2(x+y)
=(x+y)(x+y)(x-y)
12..x^2-y^2+ax+ay
=(x+y)(x-y)+a(x+y)
=(x+y)(x-y+a)
13.x^2-x-9y^2-3y
=(x+3y)(x-3y)-(x+3y)
=(x+3y)(x-3y-1)
14.a^2-b^2+4b-4
=a^2-(b-2)^2
=(a+b-2)(a-b+2)
15.a^2-2ab+b^2-c^2
=(a-b)^2-c^2
=(a-b-c)(a-b+c)
16.x^2-y^2-z^2+2yz
=-(y-z)^2+x^2
=(y-z-x)(y-z+x)
17.9-4a^2-4ab-b^2
=9-(2a+b)^2
=(3+2a+b)(3-2a-b)
18..-1-2x-x^2+y^2
=y^2-(x+1)^2
=(y+x+1)(y-x-1)