Solve for a (complex solution)
\left\{\begin{matrix}a=\frac{-b±\sqrt{b^{2}}}{2\left(x+2c\right)}\text{, }&-b±\sqrt{b^{2}}\neq 0\text{ and }x\neq -2c\\a\neq 0\text{, }&-b±\sqrt{b^{2}}=0\text{ and }x=-2c\end{matrix}\right.
Solve for a
\left\{\begin{matrix}a=\frac{-b±|b|}{2\left(x+2c\right)}\text{, }&-b±|b|\neq 0\text{ and }x\neq -2c\\a\neq 0\text{, }&-b±|b|=0\text{ and }x=-2c\end{matrix}\right.
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x\times 2a=-b±\sqrt{b^{2}}-4ac
Variable a cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 2a.
x\times 2a+4ac=-b±\sqrt{b^{2}}
Add 4ac to both sides.
\left(x\times 2+4c\right)a=-b±\sqrt{b^{2}}
Combine all terms containing a.
\left(2x+4c\right)a=-b±\sqrt{b^{2}}
The equation is in standard form.
\frac{\left(2x+4c\right)a}{2x+4c}=\frac{-b±\sqrt{b^{2}}}{2x+4c}
Divide both sides by 2x+4c.
a=\frac{-b±\sqrt{b^{2}}}{2x+4c}
Dividing by 2x+4c undoes the multiplication by 2x+4c.
a=\frac{-b±\sqrt{b^{2}}}{2\left(x+2c\right)}
Divide -b±\sqrt{b^{2}} by 2x+4c.
a=\frac{-b±\sqrt{b^{2}}}{2\left(x+2c\right)}\text{, }a\neq 0
Variable a cannot be equal to 0.
x\times 2a=-b±\sqrt{b^{2}}-4ac
Variable a cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 2a.
x\times 2a+4ac=-b±\sqrt{b^{2}}
Add 4ac to both sides.
\left(x\times 2+4c\right)a=-b±\sqrt{b^{2}}
Combine all terms containing a.
\left(2x+4c\right)a=-b±\sqrt{b^{2}}
The equation is in standard form.
\frac{\left(2x+4c\right)a}{2x+4c}=\frac{-b±|b|}{2x+4c}
Divide both sides by 2x+4c.
a=\frac{-b±|b|}{2x+4c}
Dividing by 2x+4c undoes the multiplication by 2x+4c.
a=\frac{-b±|b|}{2\left(x+2c\right)}
Divide -b±|b| by 2x+4c.
a=\frac{-b±|b|}{2\left(x+2c\right)}\text{, }a\neq 0
Variable a cannot be equal to 0.
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