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ZX-7AFD57EFB9Bluebook试题9 · 第 21 题
Bluebook试题9 · 原库模块 2 · Q21 原库参考解析
The area \( A \), in square centimeters, of a rectangular cutting board can be represented by the expression \( w\left(w+9\right) \), where w is the width, in centimeters, of the cutting board. Which expression represents the length, in centimeters, of the cutting board?
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