x" - 2x - 2 = 0
x" - 2x = 2
x" - 2x + 1 = 3
( x - 1 )" = 3
这样
( x - a )" = b
就是
a = 1 ,b = 3
将方程x2-2x-2=0化为(x-a)2=b的形式,则a,b分别等于( )
将方程x2-2x-2=0化为(x-a)2=b的形式,则a,b分别等于( )
A:1和3 B:-1和3 C:1和2 D:-1和2
A:1和3 B:-1和3 C:1和2 D:-1和2
数学人气:730 ℃时间:2020-01-29 15:13:32
优质解答
我来回答
类似推荐
猜你喜欢
- 11.heavy(副词)_ 2.wind(形容词) _5.quickly(形容词)__7.gently(同类词)__ 8.soft(副词) _
- 2小学六年级数学暑假作业暑假乐园答案
- 3在NAOH,CA(OH)2,CU(OH)2,FE(OH)3四种碱中 1 属于微溶于水的是 2 水溶液能使酚酞试液变红的是
- 4谁有新目标八年级上册英语Unit1~Unit12的单元练习题?
- 5A great many changes have taken place in China since…的意思?
- 6(根号5—根号5分之2)的平方
- 7There is a little bird in the tree.对a提问
- 8关于诵读经典,感悟成长的作文,有没有?
- 9yes,i would like to subscribe to the avira newsletter是什么意思
- 10Is there a ---- ----- in the neighborhood?I want to make a telephone call.