MathPix Latex test

[latex]f(x)=\sqrt{x^{3}+2 x^{2}+3}-a x \sqrt{x+b}[/latex]

f(x)=\sqrt{x^{3}+2 x^{2}+3}-a x \sqrt{x+b}

[latex]x={-b\pm\sqrt{b^2–4ac}\over2a}[/latex]

[latex]x = {-b \pm \sqrt{b^2 – 4ac}\over 2a}[/latex]
$$ x = {-b \pm \sqrt{b^2 – 4ac}\over 2a} $$