Solve y=4ax^2

$$y = 4 a x ^ { 2 }$$

Solve for a (complex solution)

$$\left\{\begin{matrix}a=\frac{y}{4x^{2}}\text{, }&x\neq 0\\a\in \mathrm{C}\text{, }&y=0\text{ and }x=0\end{matrix}\right.$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$4ax^{2}=y$$

The equation is in standard form.

$$4x^{2}a=y$$

Divide both sides by 4x^{2}.

$$\frac{4x^{2}a}{4x^{2}}=\frac{y}{4x^{2}}$$

Dividing by 4x^{2} undoes the multiplication by 4x^{2}.

$$a=\frac{y}{4x^{2}}$$

Solve for a

$$\left\{\begin{matrix}a=\frac{y}{4x^{2}}\text{, }&x\neq 0\\a\in \mathrm{R}\text{, }&y=0\text{ and }x=0\end{matrix}\right.$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$4ax^{2}=y$$

The equation is in standard form.

$$4x^{2}a=y$$

Divide both sides by 4x^{2}.

$$\frac{4x^{2}a}{4x^{2}}=\frac{y}{4x^{2}}$$

Dividing by 4x^{2} undoes the multiplication by 4x^{2}.

$$a=\frac{y}{4x^{2}}$$

Solve for x (complex solution)

$$\left\{\begin{matrix}x=-\frac{a^{-\frac{1}{2}}\sqrt{y}}{2}\text{; }x=\frac{a^{-\frac{1}{2}}\sqrt{y}}{2}\text{, }&a\neq 0\\x\in \mathrm{C}\text{, }&y=0\text{ and }a=0\end{matrix}\right.$$

Solve for x

$$\left\{\begin{matrix}x=\frac{\sqrt{\frac{y}{a}}}{2}\text{; }x=-\frac{\sqrt{\frac{y}{a}}}{2}\text{, }&\left(y\geq 0\text{ and }a>0\right)\text{ or }\left(y\leq 0\text{ and }a<0\right)\\x\in \mathrm{R}\text{, }&y=0\text{ and }a=0\end{matrix}\right.$$