Solve for b
\left\{\begin{matrix}\\b=0\text{, }&\text{unconditionally}\\b\in \mathrm{R}\text{, }&c=0\end{matrix}\right.
Solve for c
\left\{\begin{matrix}\\c=0\text{, }&\text{unconditionally}\\c\in \mathrm{R}\text{, }&b=0\end{matrix}\right.
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4bc=0
Multiply 2 and 2 to get 4.
4cb=0
The equation is in standard form.
b=0
Divide 0 by 4c.
4bc=0
Multiply 2 and 2 to get 4.
c=0
Divide 0 by 4b.
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