因式分解。1.(x²-2x)²-2x²+4x-3
因式分解。要过程(x²-2x)²-2x²+4x-32.(m+2n)²-(m+2n)-123.2(x-y)²z²...
因式分解。要过程
(x²-2x)²-2x²+4x-3
2. (m+2n)²-(m+2n)-12
3. 2(x-y)²z²-4(x-y)z²-48z²
y²-xy-12x² 展开
(x²-2x)²-2x²+4x-3
2. (m+2n)²-(m+2n)-12
3. 2(x-y)²z²-4(x-y)z²-48z²
y²-xy-12x² 展开
1个回答
2013-10-15 · 知道合伙人教育行家
关注
展开全部
(x²-2x)²-2x²+4x-3
= (x²-2x)²-2(x²-2x)-3
= (x²-2x-3)(x²-2x+1)
=(x+1)(x-3)(x-1)²
(m+2n)²-(m+2n)-12
=(m+2n-4)(m+2n+3)
2(x-y)²z²-4(x-y)z²-48z²
=2z²[(x-y)²-2(x-y)-24]
=2z²(x-y-6)(x-y+4)
y²-xy-12x²
=(y-4x)(y+3x)
= (x²-2x)²-2(x²-2x)-3
= (x²-2x-3)(x²-2x+1)
=(x+1)(x-3)(x-1)²
(m+2n)²-(m+2n)-12
=(m+2n-4)(m+2n+3)
2(x-y)²z²-4(x-y)z²-48z²
=2z²[(x-y)²-2(x-y)-24]
=2z²(x-y-6)(x-y+4)
y²-xy-12x²
=(y-4x)(y+3x)
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询