题目内容
计算:x-x2-x3=______;
(-x)-(-
x)=______;
(-
)0=______;
(a+2b)(______)=a2-4b2;
(2x-1)2=______.
(-x2ny3mz)2=______.
(-x)-(-
| 1 |
| 2 |
(-
| 1 |
| 2 |
(a+2b)(______)=a2-4b2;
(2x-1)2=______.
(-x2ny3mz)2=______.
x•x2•x3=x6;
(-x)•(-
x)=
x2;
(-
)0=1;
(a+2b)(a-2b)=a2-4b2;
(2x-1)2=4x2-4x+1;
(-x2ny3mz)2=x4ny6mz2.
故答案为:x6;
x2;1;a-2b;4x2-4x+1;x4ny6mz2.
(-x)•(-
| 1 |
| 2 |
| 1 |
| 2 |
(-
| 1 |
| 2 |
(a+2b)(a-2b)=a2-4b2;
(2x-1)2=4x2-4x+1;
(-x2ny3mz)2=x4ny6mz2.
故答案为:x6;
| 1 |
| 2 |
练习册系列答案
相关题目