这些题目怎么写(6x²y-4xy²)÷2xy=(3x²y²)÷(2xy)
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这些题目怎么写
(6x²y-4xy²)÷2xy=
(3x²y²)÷(2xy)²=
(3x²y²)÷(xy)*(y分之1)=
(a²-b²)²÷(a+b)²=
多项式a-4a²b-5是----次---项式
计算:[(2x+y)²-y(y+4x)]÷2x=
已知:如图,直线a,b,c在同一平面内,a‖c,b‖c.求证:a‖b.
证明一:
证明二:
图是第一条直线是a,第二条直线是b,第三条直线是c,怎么证明?
(6x²y-4xy²)÷2xy=
(3x²y²)÷(2xy)²=
(3x²y²)÷(xy)*(y分之1)=
(a²-b²)²÷(a+b)²=
多项式a-4a²b-5是----次---项式
计算:[(2x+y)²-y(y+4x)]÷2x=
已知:如图,直线a,b,c在同一平面内,a‖c,b‖c.求证:a‖b.
证明一:
证明二:
图是第一条直线是a,第二条直线是b,第三条直线是c,怎么证明?
![这些题目怎么写(6x²y-4xy²)÷2xy=(3x²y²)÷(2xy)](/uploads/image/z/19148431-31-1.jpg?t=%E8%BF%99%E4%BA%9B%E9%A2%98%E7%9B%AE%E6%80%8E%E4%B9%88%E5%86%99%EF%BC%886x%26%23178%3By-4xy%26%23178%3B%EF%BC%89%C3%B72xy%3D%EF%BC%883x%26%23178%3By%26%23178%3B%EF%BC%89%C3%B7%EF%BC%882xy%EF%BC%89%26%2317)
(6x²y—4xy²)÷2xy=3X—2
(3x²y²)÷(2xy)²=0.75
(3x²y²)÷(xy)*(y分之1)=3
多项式a—4a²b—5是三次三项式.
计算:[(2x+y)²—y(y+4x)]÷2x
=(4x²+4xy+y²—y²—4xy-8x)÷2x,
=(4x²—8x)÷2x
=2X—4
最后一题来图啊,没图无法做.
满意请采纳,谢谢
再问: 1 (a²-b²)²÷(a+b)²=
2 (3x²y²)÷(2xy)²=0.75
3 (3x²y²)÷(xy)*(y分之1)=3
2,3两题看着好像不对啊
计算:[(2x+y)²-y(y+4x)]÷2x=
这题算错了,没有-8x吧
麻烦计算题再算一遍吧
再答: 2,3两题绝对不会错。
[(2x+y)²—y(y+4x)]÷2x
=(4x²+4xy+y²—y²—4xy)÷2x,
=4x²÷2x
=2X
(a²—b²)²÷(a+b)²
=[(a+b)(a—b)]²÷(a+b)²
=(a+b)²(a—b)²÷(a+b)²
=(a—b)²
再问: (6x²y-4xy²)÷2xy=
(3x²y²)÷(2xy)²=
(3x²y²)÷(xy)*(y分之1)=
麻烦把这三道题的步骤完整的写下了,谢谢了,
再答: 答案如图:
请采纳,谢谢抱歉啊,计算题我不太想写,又想拿采纳,找人代写的,结果错了一大堆:http://zhidao.baidu.com/question/1446429723301324860.html?quesup2&oldq=1
(3x²y²)÷(2xy)²=0.75
(3x²y²)÷(xy)*(y分之1)=3
多项式a—4a²b—5是三次三项式.
计算:[(2x+y)²—y(y+4x)]÷2x
=(4x²+4xy+y²—y²—4xy-8x)÷2x,
=(4x²—8x)÷2x
=2X—4
最后一题来图啊,没图无法做.
满意请采纳,谢谢
再问: 1 (a²-b²)²÷(a+b)²=
2 (3x²y²)÷(2xy)²=0.75
3 (3x²y²)÷(xy)*(y分之1)=3
2,3两题看着好像不对啊
计算:[(2x+y)²-y(y+4x)]÷2x=
这题算错了,没有-8x吧
麻烦计算题再算一遍吧
再答: 2,3两题绝对不会错。
[(2x+y)²—y(y+4x)]÷2x
=(4x²+4xy+y²—y²—4xy)÷2x,
=4x²÷2x
=2X
(a²—b²)²÷(a+b)²
=[(a+b)(a—b)]²÷(a+b)²
=(a+b)²(a—b)²÷(a+b)²
=(a—b)²
再问: (6x²y-4xy²)÷2xy=
(3x²y²)÷(2xy)²=
(3x²y²)÷(xy)*(y分之1)=
麻烦把这三道题的步骤完整的写下了,谢谢了,
再答: 答案如图:
![](http://img.wesiedu.com/upload/3/f4/3f4fa019180cc2dfc51ba3af0220f476.jpg)
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