已知:符号“f”表示一种运算,例如,若规定f(x)=x²+x-2,则f(2)=2²+2-2=4(1)若规定f(x)=x²+x-2,求f(-2)(2)规定f(x)=ax+b①若f(1)=1,f(0)=2,求ab的值②若f(3)=5,f(-2)=1,求3a+6的
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![已知:符号“f”表示一种运算,例如,若规定f(x)=x²+x-2,则f(2)=2²+2-2=4(1)若规定f(x)=x²+x-2,求f(-2)(2)规定f(x)=ax+b①若f(1)=1,f(0)=2,求ab的值②若f(3)=5,f(-2)=1,求3a+6的](/uploads/image/z/14969912-32-2.jpg?t=%E5%B7%B2%E7%9F%A5%3A%E7%AC%A6%E5%8F%B7%E2%80%9Cf%E2%80%9D%E8%A1%A8%E7%A4%BA%E4%B8%80%E7%A7%8D%E8%BF%90%E7%AE%97%2C%E4%BE%8B%E5%A6%82%2C%E8%8B%A5%E8%A7%84%E5%AE%9Af%28x%29%3Dx%26%23178%3B%2Bx-2%2C%E5%88%99f%EF%BC%882%EF%BC%89%3D2%26%23178%3B%2B2-2%3D4%EF%BC%881%EF%BC%89%E8%8B%A5%E8%A7%84%E5%AE%9Af%EF%BC%88x%EF%BC%89%3Dx%26%23178%3B%2Bx-2%2C%E6%B1%82f%EF%BC%88-2%EF%BC%89%EF%BC%882%EF%BC%89%E8%A7%84%E5%AE%9Af%EF%BC%88x%EF%BC%89%3Dax%2Bb%E2%91%A0%E8%8B%A5f%EF%BC%881%EF%BC%89%3D1%2Cf%EF%BC%880%EF%BC%89%3D2%2C%E6%B1%82ab%E7%9A%84%E5%80%BC%E2%91%A1%E8%8B%A5f%EF%BC%883%EF%BC%89%3D5%2Cf%EF%BC%88-2%EF%BC%89%3D1%2C%E6%B1%823a%2B6%E7%9A%84)
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