初一数学题两道(关于平方差公式)急1.已知2^48 -1可以被60至70之间的两个整数整除,则这两个整数是多少?2.已知(a+b-3)²+(a-b+5)²=0,求a²-b²的值
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![初一数学题两道(关于平方差公式)急1.已知2^48 -1可以被60至70之间的两个整数整除,则这两个整数是多少?2.已知(a+b-3)²+(a-b+5)²=0,求a²-b²的值](/uploads/image/z/403948-28-8.jpg?t=%E5%88%9D%E4%B8%80%E6%95%B0%E5%AD%A6%E9%A2%98%E4%B8%A4%E9%81%93%EF%BC%88%E5%85%B3%E4%BA%8E%E5%B9%B3%E6%96%B9%E5%B7%AE%E5%85%AC%E5%BC%8F%EF%BC%89%E6%80%A51.%E5%B7%B2%E7%9F%A52%5E48+-1%E5%8F%AF%E4%BB%A5%E8%A2%AB60%E8%87%B370%E4%B9%8B%E9%97%B4%E7%9A%84%E4%B8%A4%E4%B8%AA%E6%95%B4%E6%95%B0%E6%95%B4%E9%99%A4%2C%E5%88%99%E8%BF%99%E4%B8%A4%E4%B8%AA%E6%95%B4%E6%95%B0%E6%98%AF%E5%A4%9A%E5%B0%91%3F2.%E5%B7%B2%E7%9F%A5%28a%2Bb-3%29%26%23178%3B%2B%28a-b%2B5%29%26%23178%3B%3D0%2C%E6%B1%82a%26%23178%3B-b%26%23178%3B%E7%9A%84%E5%80%BC)
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