(a-b)(5a-6) (a-3)(9-4a)
来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 02:16:11
解题思路:因式分解一定是相乘的形式,而这个题目无法分解。解题过程:解:[a+b][a-b]+3a这个式子没办法进行因式分解,看看是不是原题目?
(3a-6b)/a+b-(5a-6b/a-b)-(4a-5b/a+b)-(7a-8b/b-a)=[(3a-6b)-(4a-5b)]/(a+b)-[(5a-6b)-(7a-8b)/(a-b)]=-(a+
3a(a-b)-5b(a-b)=(3a-5b)(a-b)施主,我看你骨骼清奇,器宇轩昂,且有慧根,乃是万中无一的武林奇才.潜心修习,将来必成大器,鄙人有个小小的考验请点击在下答案旁的"选为满意答案"再
a+(5a-3b)-(a-2b)=a+5a-3b-a+2b=5a-
因为a*b=2×a+b,所以:a*2a=2a+2a=4a,4a*3a=4a×2+3a=11a,11a*4a=11a×2+4a=26a,26a*5a=26a×2+5a=57a,57a*6a=57a×2+
(a+1)(a+3)(a+5)(a+7)+15=(a+1)(a+7)(a+3)(a+5)+15=(a²+8a+7)(a²+8a+15)+15设a²+8a+11=A(a+1
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]=5a-{-3b+[6c-2a-a+c]}-[9a-7b-c]=5a-{-3b+6c-2a-a+c}-9a+7b+c=10b-3a-
a-b=5ab=-6(a-b)^2=25a^2-2ab+b^2=25a^2-2*(-6)+b^2=25a^2+b^2=13(a+b)^2=a^2+b^2+2ab=13+2*(-6)=1(a+b)=±1
最终结果等于1.(3a-6b)/(a+b)-(4a-5b)/(a+b)-(5a-6b)/(a-b)-(7a-8b)/(b-a)=(3a-6b-4a+5b)/(a+b)-(5a-6b)/(a-b)+(7
(a-b)-3a+3b=(a-b)-3(a-b)=(a-b)(a-b-3)(a+b)(a-b)-2b(3a-5b)=a-b-6ab+10b=a-6ab+9b=(a-3)补充:结果是(a-3b)不好意思
(a+3a+5a+...+2013a)-(2a+4b+6a+...+2012a)的答案,急=a{(1+2013)x[(2013-1)÷2+1]-(2+2012)x[(2012-2)÷2+1]}=201
(3a+2b)(6a-5b)(2b-3a)(5a+6b)=(2b+3a)(2b-3a)(6a-5b)(6a+5b)=(4b²-9a²)(36a²-25b²)=3
(a+3a+5a+……+2013a)-(2a+4b+6a+……+2012a)=a-2a+3a-4b+5a-6a+……+2011a-2012a+2013a=-a+3a-4b-a-a-……-a+2013a
当a>0时A-B=(a-1)(a^5+a^3+a)+1=(((((a-1)a+1)a-1)a+1)a-1)a+10Ba>1时A-B>0A>B再问:这个看的好晕A-B=(a-1)(a^5+a^3+a)+
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a+2b=5(1)b+3a=6(2)(1)×7+(2)7a+14b+b+3a=35+610a+15b=41两边除以52a+3b=41/5
(3a-6b)/(a+b)-(5a-6b)/(a-b)-(4a-5b)/(a+b)-(7a-8b)/(a-b)=(3a-6b)/(a+b)-(4a-5b)/(a+b)-(5a-6b)/(a-b)-(7
a²-b²=1/3(a-b)(a+b)=1/3(a+b)/6=1/3a+b=2a(3a+5b)-(a-b)(a+2b)=3a²+5ab-a²-ab+2b
化简的=(3a-6b-4a+5b)/(a+b)-(5a-6b-7a+8b)/(a-b)=(-a-b)/(a+b)-(-2a+2b)/(a-b)=-1-(-2)=1
[(a+2b)(a-2b)-(2a-b)^2+(3a-b)(3a-5b)]÷2a=(a²-4b²-4a²+4ab-b²+9a²-18ab+5b