已知实数a,b满足a+b=3,a-b=5,则ab的值是( ) (A)已知实数a,b满足a+b=3,a-b=5,则ab的值是( )(A) 4 (B)-4(C)16 (D)-16
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![已知实数a,b满足a+b=3,a-b=5,则ab的值是( ) (A)已知实数a,b满足a+b=3,a-b=5,则ab的值是( )(A) 4 (B)-4(C)16 (D)-16](/uploads/image/z/5543754-42-4.jpg?t=%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0a%2Cb%E6%BB%A1%E8%B6%B3a%2Bb%3D3%2Ca-b%3D5%2C%E5%88%99ab%E7%9A%84%E5%80%BC%E6%98%AF%EF%BC%88+%EF%BC%89+%EF%BC%88A%EF%BC%89%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0a%2Cb%E6%BB%A1%E8%B6%B3a%2Bb%3D3%2Ca-b%3D5%2C%E5%88%99ab%E7%9A%84%E5%80%BC%E6%98%AF%EF%BC%88+%EF%BC%89%EF%BC%88A%EF%BC%89+4+%28B%29-4%28C%2916+%28D%29-16)
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已知实数a,b满足a+b=3,a-b=5,则ab的值是( ) (A)已知实数a,b满足a+b=3,a-b=5,则ab的值是( )(A) 4 (B)-4(C)16 (D)-16
已知实数a,b满足a+b=3,a-b=5,则ab的值是( ) (A)
已知实数a,b满足a+b=3,a-b=5,则ab的值是( )
(A) 4 (B)-4
(C)16 (D)-16
已知实数a,b满足a+b=3,a-b=5,则ab的值是( ) (A)已知实数a,b满足a+b=3,a-b=5,则ab的值是( )(A) 4 (B)-4(C)16 (D)-16
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