[(a+b)²-4ab]÷(a-b)² (a²-b²)÷(a+b) (a4-b4
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/18 03:10:11
[(a+b)²-4ab]÷(a-b)² (a²-b²)÷(a+b) (a4-b4)÷(a2+b2)÷(a+b) 利用乘法公式计算
[(a+b)²-4ab]÷(a-b)²
=(a² +2ab+b² -4ab)÷(a-b)²
=(a² -2ab+b² )÷(a-b)²
=(a-b)² ÷(a-b)²
=1
(a²-b²)÷(a+b)
=(a+b)(a-b)÷(a+b)
=a-b
(a4-b4)÷(a2+b2)÷(a+b)
=(a²+b²)(a²-b²)÷(a²+b²)÷(a-b)
=(a²-b²)÷(a+b)
=(a+b)(a-b)÷(a+b)
=a-
=(a² +2ab+b² -4ab)÷(a-b)²
=(a² -2ab+b² )÷(a-b)²
=(a-b)² ÷(a-b)²
=1
(a²-b²)÷(a+b)
=(a+b)(a-b)÷(a+b)
=a-b
(a4-b4)÷(a2+b2)÷(a+b)
=(a²+b²)(a²-b²)÷(a²+b²)÷(a-b)
=(a²-b²)÷(a+b)
=(a+b)(a-b)÷(a+b)
=a-
[(a+b)²-4ab]÷(a-b)² (a²-b²)÷(a+b) (a4-b4
化简 (a²+b²/a²-b²-a-b/a+b)÷2ab/(a-b)(a+b)&
计算 (a²-2ab+b²-a+b)÷(a-b) (a+b)²÷(a-b)
计算:a/b(a-b)-b/a(a-b);(1/a+1/b)÷a²+2ab+b²/a+b.
(1)[4a(2a-3ab²)-3a²b4-5b)]÷(-½ab) 需要清晰的过程,
先化简,再求值;[(2a-b/a+b)-(b/a-b)]÷{(a-2b/a+b)+[ab/(a-b)²]},其
3ab+3b²/b(a²+2ab+b²) ×a²-b²/a-b ÷b/
(a+b/a-b)²×2a-2b/3a+3b÷ab/a²-b²
设实数a,b满足a≠b,求证:a4+b4>ab(a2+b2).
(3a³b²)÷a²+b(a²b-3ab)
计算3a²b²÷a²+b×(a²b-3ab-5a²b)
1-a-b/a+2b÷a²-b²/a²+4ab+4b²