i dont feel well and i cant s__ well at night 初一水平计算: (1)(a+b²)(2a-b) (2)(2x-y)(x+y)-y(x-y) 要详细过程
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i dont feel well and i cant s__ well at night 初一水平计算: (1)(a+b²)(2a-b) (2)(2x-y)(x+y)-y(x-y) 要详细过程
i dont feel well and i cant s__ well at night 初一水平
计算: (1)(a+b²)(2a-b) (2)(2x-y)(x+y)-y(x-y) 要详细过程
i dont feel well and i cant s__ well at night 初一水平计算: (1)(a+b²)(2a-b) (2)(2x-y)(x+y)-y(x-y) 要详细过程
英语的是 sleep (睡觉)
数学的是两道题吗?
(1)
(a+b²)(2a-b)
=2a^2-ab+2ab^2-b^3
(2)
(2x-y)(x+y)-y(x-y)
=2x^2+2xy-xy-y^2-xy+y^2
=2x^2
^表示“上标”
你好,填sleep(睡觉)
句子翻译是:我感觉不好且晚上睡不好
don't feel well:感觉不好 can't sleep well:睡不好,不能睡好
祝你开心
望采纳谢谢
study或sleep
你好,应该是:
sleep 睡觉
我觉得不舒服,同时夜里我睡不着
~~~~~~~~~~~~~~~~祝你进步,如对你有帮助,请及时采纳~~~~~~~~~~~~~~~~
计算题,1:原式=ax(2a)-ab+b平方x2a-b平方xb,剩下自己做,记得合并同类项。
2:原式=2xx+2xy-yx-yy-yx+yy,剩下继续自己做。这种题就是把括号里的每项都互相乘一遍,然后合并同类项。
i dont feel well and i cant s__ well at night 初一水平计算: (1)(a+b²)(2a-b) (2)(2x-y)(x+y)-y(x-y) 要详细过程
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