化简[(3a-4b)(-3a-4b)-(4b-3a)²-3a(1/3ab²+a-b)]÷(-3a)
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/06/06 14:18:53
化简[(3a-4b)(-3a-4b)-(4b-3a)²-3a(1/3ab²+a-b)]÷(-3a)
[(3a-4b)(-3a-4b)-(4b-3a)²-3a(1/3ab²+a-b)]÷(-3a)
=[(-4b+3a)(-4b-3a)-(4b-3a)²-3a(1/3ab²+a-b)]÷(-3a)
=[16b²-9a²-16b²+24ab-9a²-3a(1/3ab²+a-b)]÷(-3a)
=[24ab-18a²-3a(1/3ab²+a-b)]÷(-3a)
=6a-8b+1/3ab²+a-b
=7a-9b+1/3ab²
=[(-4b+3a)(-4b-3a)-(4b-3a)²-3a(1/3ab²+a-b)]÷(-3a)
=[16b²-9a²-16b²+24ab-9a²-3a(1/3ab²+a-b)]÷(-3a)
=[24ab-18a²-3a(1/3ab²+a-b)]÷(-3a)
=6a-8b+1/3ab²+a-b
=7a-9b+1/3ab²
化简[(3a-4b)(-3a-4b)-(4b-3a)²-3a(1/3ab²+a-b)]÷(-3a)
化简:a-(3ab+b)+(3a-4b-ab)
先化简再求值 (a-2b)(a²+2ab+4b²)-a(a-5b)(a+3b),其中a=-1,b=2
(a+b/a-b)²×2a-2b/3a+3b÷ab/a²-b²
计算(a^3-4a^2b-a+4ab^2)/a(a-2b+1)
化简 (a+b)²+2a(a-1/2b)-3(a-b)(a+b)
计算:3a+4b/a-b+3b/b-a-4a/a-b
3a/a-4b +a+b/4b-a -7b/a-4b
3ab+3b²/b(a²+2ab+b²) ×a²-b²/a-b ÷b/
a³+a²b-(4a²b+3ab²)+b³+6ab²+2b&
规定两种新运算:a*b=a+b,a#b=a-b,其中a、b为有理数.化简a²b*3ab+5a²bb#
分解因式(a+1)(a+3)(a+5)(a+7)+15(2a+b)(4a^2-2ab+b^2)-b(2a-b)^2a^3