3a-3b/10ab*25a²b³/a²-b²x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy2m²n/3pq²*5p²q/4mn²÷5mnp/3q16-a²/a²+8a+16÷a-4/2a+8*a-2/a+2

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/25 08:45:15
3a-3b/10ab*25a²b³/a²-b²x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy2m&

3a-3b/10ab*25a²b³/a²-b²x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy2m²n/3pq²*5p²q/4mn²÷5mnp/3q16-a²/a²+8a+16÷a-4/2a+8*a-2/a+2
3a-3b/10ab*25a²b³/a²-b²
x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy
2m²n/3pq²*5p²q/4mn²÷5mnp/3q
16-a²/a²+8a+16÷a-4/2a+8*a-2/a+2

3a-3b/10ab*25a²b³/a²-b²x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy2m²n/3pq²*5p²q/4mn²÷5mnp/3q16-a²/a²+8a+16÷a-4/2a+8*a-2/a+2
1、
原式=3(a-b)/10ab*25a²b³/(a+b)(a-b)
=15ab²/(2a+2b)
2、
原式=[(x+2y)(x-2y)/(x+y)²]×[(2x²+2xy)/(x+2y)]
=[(x+2y)(x-2y)/(x+y)²]×[2x(x+y)/(x+2y)]
=2x(x-2y)/(x+y)
3、
原式=10p²qm²n/(12pq²mn²)×3q/5mnp
=5pm/(6qn)×3q/5mnp
=1/(2n²)
4、
原式=[-(a+4)(a-4)/(a+4)²]×[2(a+4)/(a-4)]×[(a-2)/(a+2)]
=-2(a-2)/(a+2)]