原式=(9a²+6ab+b²)/(3a+b) =(3a+b)²/(3a+b)为什么(9a²+6ab+b²)=(3a+b)²大神速度回答下
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![原式=(9a²+6ab+b²)/(3a+b) =(3a+b)²/(3a+b)为什么(9a²+6ab+b²)=(3a+b)²大神速度回答下](/uploads/image/z/5539445-53-5.jpg?t=%E5%8E%9F%E5%BC%8F%3D%289a%26%23178%3B%2B6ab%2Bb%26%23178%3B%29%2F%283a%2Bb%29+%3D%283a%2Bb%29%26%23178%3B%2F%283a%2Bb%29%E4%B8%BA%E4%BB%80%E4%B9%88%289a%26%23178%3B%2B6ab%2Bb%26%23178%3B%29%3D%283a%2Bb%29%26%23178%3B%E5%A4%A7%E7%A5%9E%E9%80%9F%E5%BA%A6%E5%9B%9E%E7%AD%94%E4%B8%8B)
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原式=(9a²+6ab+b²)/(3a+b) =(3a+b)²/(3a+b)为什么(9a²+6ab+b²)=(3a+b)²大神速度回答下
原式=(9a²+6ab+b²)/(3a+b) =(3a+b)²/(3a+b)
为什么(9a²+6ab+b²)=(3a+b)²大神速度回答下
原式=(9a²+6ab+b²)/(3a+b) =(3a+b)²/(3a+b)为什么(9a²+6ab+b²)=(3a+b)²大神速度回答下
9a²+6ab+b²
=(3a)²+2×3a×b+b²
=(3a+b)² 是一个完全平方式