Solve for a
a=\frac{u^{2}}{8}
Solve for u (complex solution)
u=-2\sqrt{2a}
u=2\sqrt{2a}
Solve for u
u=2\sqrt{2a}
u=-2\sqrt{2a}\text{, }a\geq 0
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16a=2u^{2}
Add 2u^{2} to both sides. Anything plus zero gives itself.
\frac{16a}{16}=\frac{2u^{2}}{16}
Divide both sides by 16.
a=\frac{2u^{2}}{16}
Dividing by 16 undoes the multiplication by 16.
a=\frac{u^{2}}{8}
Divide 2u^{2} by 16.
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