a的平方和2a所表示的意义相同√还是×
a的平方和2a所表示的意义相同√还是×
数学人气：547 ℃时间：2020-02-05 23:45:39
优质解答
不同 a的平方就是a×a 而2a 是 2×a所以意义不同
我来回答
类似推荐
猜你喜欢
- 1有五个数的平均数是10,如果把其中一个数改为2,这时五个数的平均数是8,被改动的数原来是几?
- 2如果二次函数y=-X2+2x+3的图象顶点为点P,点O是坐标原点,求三角形OPN的面积?
- 3If you don't stop working so hard .you will be ill
- 4把重五牛、体积0.4立方分米的物体投入水中.若不计水的阻力,当物体静止时是什么情况A.物体漂浮B.
- 5Thanks for listening to my problem and giving me your advice,Amy.-_____ That's what friends are fo
- 6如图所示，⊙O中弦AB=CD，求证：AD＝BC．
- 7Don't know how to express my love for you
- 8What did you do on the playground?---I watched him_baskekbal to play play played plays
- 9You should pay more attention to your spelling.的 被动语态
- 10to have done