a²+3a+b²-4a+1/4=-6 a=______ b=_______打错了;正确的是:a²+3a+b²-4b+1/4=-6 a=______ b=_______
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![a²+3a+b²-4a+1/4=-6 a=______ b=_______打错了;正确的是:a²+3a+b²-4b+1/4=-6 a=______ b=_______](/uploads/image/z/2533824-0-4.jpg?t=a%26%23178%3B%2B3a%2Bb%26%23178%3B-4a%2B1%2F4%3D-6+a%3D______+b%3D_______%E6%89%93%E9%94%99%E4%BA%86%3B%E6%AD%A3%E7%A1%AE%E7%9A%84%E6%98%AF%EF%BC%9Aa%26%23178%3B%2B3a%2Bb%26%23178%3B-4b%2B1%2F4%3D-6+a%3D______+b%3D_______)
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a²+3a+b²-4a+1/4=-6 a=______ b=_______打错了;正确的是:a²+3a+b²-4b+1/4=-6 a=______ b=_______
a²+3a+b²-4a+1/4=-6 a=______ b=_______
打错了;正确的是:a²+3a+b²-4b+1/4=-6 a=______ b=_______
a²+3a+b²-4a+1/4=-6 a=______ b=_______打错了;正确的是:a²+3a+b²-4b+1/4=-6 a=______ b=_______
a²+3a+b²-4b+1/4=-6 a=__-3/2__ b=___2__
a²+3a+b²-4b+1/4=-6
a²+3a+b²-4b+1/4+6=0
(a+3/2)²+(b-2)²=0
∴a=-3/2,b=2