11道因式分解.需过程.很简单.快.1.2a^3-18a2.4-a^2-b^2+2ab3.2x^2+50xy+300y^24.16x-x^55.2x^3-3x^2+3y^2-2xy^26.x^2-x^4+127.a^4-3a^2-48.4x^2-9y^2-24yz-16xz9.(x^2+1)^2-2x(x^2+1)10.-x^5+5x^4+6x^311.x^2-1-4y^2+4y
问题描述：
11道因式分解.需过程.很简单.快.
1.2a^3-18a
2.4-a^2-b^2+2ab
3.2x^2+50xy+300y^2
4.16x-x^5
5.2x^3-3x^2+3y^2-2xy^2
6.x^2-x^4+12
7.a^4-3a^2-4
8.4x^2-9y^2-24yz-16xz
9.(x^2+1)^2-2x(x^2+1)
10.-x^5+5x^4+6x^3
11.x^2-1-4y^2+4y
答
1.=2a(a^2-9)
=2a(a-3)(a+3)
2.=4-(a^2-2ab+b^2)
=4-(a-b)^2
=(4-a+b)(4+a-b)
答
2a(a+3)(a-3)(4+a-b)(4-a+b)2(x+15y)(x+10y)(16-x)x^4(2x-3)(x+y)(x-y)-(x^2+3)(x+2)(x-2)(a^2+1)(a+2)(a-2)(2x+3y)(2x-3y-8z)(x^2+1)(x-1)^2-(x+2)(x+3)x^3(x+2y-1)(x-2y+1)