帮我解下下面的计算题1、(3ab-2a)÷a 2、(x^3-2x^y)÷(-x^2) 3、-21a^2b^3÷7a^2b 4、(6a^3b-9a^c)÷3a^2 5、(5ax^2+15x)÷5x 6、(a+2b)(a-2b) 7、(3a+b)^2 8、(1/2 a-1/3 b)^2 9、(x+5y)(x-7y) 10、(2a+3b)(2a+3b) 11、(x+5)(x-7) 12、5x^3×8
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 21:39:31
![帮我解下下面的计算题1、(3ab-2a)÷a 2、(x^3-2x^y)÷(-x^2) 3、-21a^2b^3÷7a^2b 4、(6a^3b-9a^c)÷3a^2 5、(5ax^2+15x)÷5x 6、(a+2b)(a-2b) 7、(3a+b)^2 8、(1/2 a-1/3 b)^2 9、(x+5y)(x-7y) 10、(2a+3b)(2a+3b) 11、(x+5)(x-7) 12、5x^3×8](/uploads/image/z/10237570-34-0.jpg?t=%E5%B8%AE%E6%88%91%E8%A7%A3%E4%B8%8B%E4%B8%8B%E9%9D%A2%E7%9A%84%E8%AE%A1%E7%AE%97%E9%A2%981%E3%80%81%283ab-2a%29%C3%B7a+2%E3%80%81%EF%BC%88x%5E3-2x%5Ey%29%C3%B7%28-x%5E2%29+3%E3%80%81-21a%5E2b%5E3%C3%B77a%5E2b+4%E3%80%81%286a%5E3b-9a%5Ec%29%C3%B73a%5E2+5%E3%80%81%285ax%5E2%2B15x%29%C3%B75x+6%E3%80%81%28a%2B2b%29%28a-2b%29+7%E3%80%81%283a%2Bb%29%5E2+8%E3%80%81%281%2F2+a-1%2F3+b%29%5E2+9%E3%80%81%28x%2B5y%29%28x-7y%29+10%E3%80%81%282a%2B3b%29%282a%2B3b%29+11%E3%80%81%28x%2B5%29%28x-7%29+12%E3%80%815x%5E3%C3%978)
xZnF~_3vgEZno
U%;Uh
miAJ@
jDDEx
=gflo6fHrg~7fh{wу7+%7)-s5Dۖ
ʙ'vjX]=Ѥ
kAkvEC? n`UK>U3
=)+KhڥBbpD3T#xG\XJ}y|8ʘDC@pQQ)KLVڱtj8]̔"])ĉPIT3< Ƨ覀iC3G%gj04 m@Iq\%a*Mz#%^=Ջċj9lxTvtW*
#| SM!f\x'Y~,}
Fdb71`#x+G7J]I#W8 $