分解因式:(1)4a2x2-16x2y2(2)a2(a-3)-a+3(3)(a2+1)2-4a(a2+1)+4a2(4)
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/08/24 11:11:03
分解因式:
(1)4a2x2-16x2y2
(2)a2(a-3)-a+3
(3)(a2+1)2-4a(a2+1)+4a2
(4)x4-9x2+20.
(1)4a2x2-16x2y2
(2)a2(a-3)-a+3
(3)(a2+1)2-4a(a2+1)+4a2
(4)x4-9x2+20.
(1)4a2x2-16x2y2
=4x2(a2-4y2)
=4x2(a+2y)(a-2y);
(2)a2(a-3)-a+3
=a2(a−3)−(a−3)
=(a−3)(a2−1)
=(a−3)(a+1)(a−1)
(3)(a2+1)2-4a(a2+1)+4a2
=(a2+1-2a)2
=(a-1)4;
(4)x4-9x2+20
=(x2−4)(x2−5)
=(x−2)(x+2)(x2−5).
再问: http://zhidao.baidu.com/question/558076682.html
=4x2(a2-4y2)
=4x2(a+2y)(a-2y);
(2)a2(a-3)-a+3
=a2(a−3)−(a−3)
=(a−3)(a2−1)
=(a−3)(a+1)(a−1)
(3)(a2+1)2-4a(a2+1)+4a2
=(a2+1-2a)2
=(a-1)4;
(4)x4-9x2+20
=(x2−4)(x2−5)
=(x−2)(x+2)(x2−5).
再问: http://zhidao.baidu.com/question/558076682.html
(a2-4/a2-4a+3)×(a-3/a2+3a+2=?
已知a2-3a+1=0,那么4a2−9a−2+91+a2=( )
把下列各式分解因式:(1)a2(x-y)2+2a(x-y)3+(x-y)4(2)(x2+y2)2-4x2y2.
化简:5a2-[a2+(5a2-2a)-2(a2-3a)].
因式分解(a2+3a-3)(a2+3a+1)-5 (1-a2)(1-b2)+4ab
(4a2-3a+1)-3(-a3+2a2).
先化简,再求值:(4a2-3a)+(2+4a-a2)-(2a2+a-1),其中a=-2.
若a是有理数,则整式a2(a2-2)-2a2+4的值( )
(a2-1)/(a2+2a+1)除以(a2-a)/(a+1) (a-2/(a+3)除以(a2-4)/(a2+6a+9)
若根号(a2-3a+1)+b2+2b+1,则a2+1/a2-绝对值b=是多少
计算:(3a2+2a+1)-(2a2+3a-5)的结果是( )
化简 (2a2-1+2a)-3(a-1+a2)