题目内容
把结果相同的两个式子连起来.
|
x ×x |
x +x |
2.5 ·x |
2.5 ×2.5 |
122 |
|
2.52 |
x ×2.5 |
2 ·x |
12 ×2 |
x2 |
答案:略
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把结果相同的两个式子连起来.
|
x ×x |
x +x |
2.5 ·x |
2.5 ×2.5 |
122 |
|
2.52 |
x ×2.5 |
2 ·x |
12 ×2 |
x2 |