(1)117×113(2)(2xy-1/3x)^2(3)一种电子计算机每秒可做4×10^9 次运算,它工作5×10^2 秒可做多少次运算(4)(1-a)(0.1-a)(5)(3x-y)(3x+y)+y(x+y)
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![(1)117×113(2)(2xy-1/3x)^2(3)一种电子计算机每秒可做4×10^9 次运算,它工作5×10^2 秒可做多少次运算(4)(1-a)(0.1-a)(5)(3x-y)(3x+y)+y(x+y)](/uploads/image/z/8410557-21-7.jpg?t=%281%29117%C3%97113%282%29%282xy-1%2F3x%29%5E2%283%29%E4%B8%80%E7%A7%8D%E7%94%B5%E5%AD%90%E8%AE%A1%E7%AE%97%E6%9C%BA%E6%AF%8F%E7%A7%92%E5%8F%AF%E5%81%9A4%C3%9710%5E9+%E6%AC%A1%E8%BF%90%E7%AE%97%2C%E5%AE%83%E5%B7%A5%E4%BD%9C5%C3%9710%5E2+%E7%A7%92%E5%8F%AF%E5%81%9A%E5%A4%9A%E5%B0%91%E6%AC%A1%E8%BF%90%E7%AE%97%284%29%281-a%29%280.1-a%29%285%29%283x-y%29%283x%2By%29%2By%28x%2By%29)
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