Solve for a, b
a=0\text{, }b=0
a=0\text{, }b=-\frac{3}{4}=-0.75
a=\frac{1}{4}=0.25\text{, }b=\frac{-\sqrt{17}-3}{8}\approx -0.890388203
a=\frac{1}{4}=0.25\text{, }b=\frac{\sqrt{17}-3}{8}\approx 0.140388203
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