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Solve for b
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Solve for a (complex solution)
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Solve for a
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0=-8a^{2}+2ab-8
Multiply 4 and \frac{1}{2} to get 2.
-8a^{2}+2ab-8=0
Swap sides so that all variable terms are on the left hand side.
2ab-8=8a^{2}
Add 8a^{2} to both sides. Anything plus zero gives itself.
2ab=8a^{2}+8
Add 8 to both sides.
\frac{2ab}{2a}=\frac{8a^{2}+8}{2a}
Divide both sides by 2a.
b=\frac{8a^{2}+8}{2a}
Dividing by 2a undoes the multiplication by 2a.
b=4a+\frac{4}{a}
Divide 8a^{2}+8 by 2a.