如果a、b为实数,满足3a+4+b2-12b+36=0,那么ab的值是_.
如果a、b为实数,满足
+b
2-12b+36=0,那么ab的值是______.
数学人气:726 ℃时间:2020-03-22 22:35:27
优质解答
原式化为:
+(b-6)
2=0.
∴
=0,b-6=0.
∴a=
−,b=6
∴ab=
−×6=-8
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