2x方+(4y-7)x+2y方-7y+3(因式分解)
2x方+(4y-7)x+2y方-7y+3(因式分解)
数学人气:899 ℃时间:2019-11-15 03:22:31
优质解答
2x²+(4y-7)x+2y²-7y+3=2x²+4xy+2y²-7x-7y+3=2(x²+2xy+y²)-7(x+y)+3=2(x+y)²-7(x+y)+3=[2(x+y)-1][(x+y)-3]=(2x+2y-1)(x+y-3)
我来回答
类似推荐
猜你喜欢
- 1基因工程是否成功,需要进行检测.其中分子水平的检测是:
- 2She___a man___a lot of money. A was married; with B married; with C married; to D was married; to
- 3它是56的因数,又是7的倍数,它的因数中有14,这个数是( )
- 4硝基苯,环己烷都溶于水吗?
- 5一堆大米2吨,第一周吃去二分之一吨,还剩几吨?
- 6已知抛物线y=ax^2+bx+c与x轴交于A,B,与y轴交于点C(0,3),对称轴为直线x=2 (1)求抛物线的函数表达式
- 7一、连词成句 1.great have fun they 2.do have hobbies you any 3.the dinner is reunion this
- 8英语复数形式
- 9how is she like 和 what is she like的区别是什么呢!
- 102+2的二次方+2的三次方+...+2的2013次方等于多少?