已知实数a,b,c满足a=6-b,c^2=ab-9,则a=_____,b=______,c=______

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已知实数a,b,c满足a=6-b,c^2=ab-9,则a=_____,b=______,c=______

已知实数a,b,c满足a=6-b,c^2=ab-9,则a=_____,b=______,c=______
已知实数a,b,c满足a=6-b,c^2=ab-9,则a=_____,b=______,c=______

已知实数a,b,c满足a=6-b,c^2=ab-9,则a=_____,b=______,c=______
因c^2=ab-9=(6-b)b-9=-b^2+6b-9=-(b^2-6b+9)=-(b-3)^2

a=3,b=3,c=0

a=3,b=3,c=0