Solve for y
y=-2b^{2}-84
Solve for b (complex solution)
b=-\frac{\sqrt{-2y-168}}{2}
b=\frac{\sqrt{-2y-168}}{2}
Solve for b
b=\frac{\sqrt{-2y-168}}{2}
b=-\frac{\sqrt{-2y-168}}{2}\text{, }y\leq -84
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y=-2b^{2}-72-12
Multiply 12 and 6 to get 72.
y=-2b^{2}-84
Subtract 12 from -72 to get -84.
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