Solve y=x^2+x^2+x^2

$$y = x ^ { 2 } + x ^ { 2 } + x ^ { 2 }$$

Solve for y

$$y=3x^{2}$$

Solution Steps

Combine x^{2} and x^{2} to get 2x^{2}.

$$y=2x^{2}+x^{2}$$

Combine 2x^{2} and x^{2} to get 3x^{2}.

$$y=3x^{2}$$

Solve for x (complex solution)

$$x=-\frac{\sqrt{3y}}{3}$$

$$x=\frac{\sqrt{3y}}{3}$$

Solve for x

$$x=\frac{\sqrt{3y}}{3}$$

$$x=-\frac{\sqrt{3y}}{3}\text{, }y\geq 0$$