阅读并回答下列去问题: (1)在下列等式中,A和B应该是什么样的式子? ①(X+Y+Z)(X-Y+Z)=(A+B)(A-B)②(X+Y-Z)(X-Y+Z)=(A+B)(A-B)(2)利用上面的结果,计算(X+Y-1)(X+Y+1)
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![阅读并回答下列去问题: (1)在下列等式中,A和B应该是什么样的式子? ①(X+Y+Z)(X-Y+Z)=(A+B)(A-B)②(X+Y-Z)(X-Y+Z)=(A+B)(A-B)(2)利用上面的结果,计算(X+Y-1)(X+Y+1)](/uploads/image/z/6116807-47-7.jpg?t=%E9%98%85%E8%AF%BB%E5%B9%B6%E5%9B%9E%E7%AD%94%E4%B8%8B%E5%88%97%E5%8E%BB%E9%97%AE%E9%A2%98%EF%BC%9A+%EF%BC%881%EF%BC%89%E5%9C%A8%E4%B8%8B%E5%88%97%E7%AD%89%E5%BC%8F%E4%B8%AD%2CA%E5%92%8CB%E5%BA%94%E8%AF%A5%E6%98%AF%E4%BB%80%E4%B9%88%E6%A0%B7%E7%9A%84%E5%BC%8F%E5%AD%90%3F+%E2%91%A0%EF%BC%88X%2BY%2BZ%29%28X-Y%2BZ%29%3D%28A%2BB%29%28A-B%29%E2%91%A1%28X%2BY-Z%29%28X-Y%2BZ%29%3D%28A%2BB%29%28A-B%29%282%29%E5%88%A9%E7%94%A8%E4%B8%8A%E9%9D%A2%E7%9A%84%E7%BB%93%E6%9E%9C%2C%E8%AE%A1%E7%AE%97%EF%BC%88X%2BY-1%EF%BC%89%EF%BC%88X%2BY%2B1%EF%BC%89)
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