∵(2y+3)(3y+2)-6y(y+3)+5y+16
=6y2+4y+9y+6-6y2-18y+5y+16
=22
∴(2y+3)(3y+2)-6y(y+3)+5y+16的值与y的值无关.
试说明代数式(2y+3)(3y+2)-6y(y+3)+5y+16的值与y的值无关.
试说明代数式(2y+3)(3y+2)-6y(y+3)+5y+16的值与y的值无关.
数学人气:889 ℃时间:2019-09-29 03:12:43
优质解答
我来回答
类似推荐
猜你喜欢
- 1已知x^2+y^2=7,xy=-1,求代数式:5x^2-3xy-4y^2-11xy+2y^2-7x^2
- 2水管直径为100mm,施加3公斤压力,请问每小时的流速是多少?
- 3anxious to do和eager for 和be dying to和 be longing to 的区别
- 4Especially that in daily life and in study,you can ask me for help if you have any trouble.
- 5甲乙丙三人到商店去买东西,每人都花了整数元,他们一共花了32元,甲乙两人花费的差是19元,乙丙两人的差是7
- 6照样子,将所学的成语归类整理什么意思?
- 7请帮忙找带月的成语、诗句
- 8含有分别以Z Y L开头的单词组成的唯美英文句子.
- 9电线杆在阳光照射下,其影长为6m,另一位身高为1.8m的人,直立时影长为1.5m,求电线杆的长
- 10The fish your mother cooked yesterday t____ very nice