The library doesn't render anything!

[AhmadBadah]

I use the Expo project and when applying this demo there doesn't work or display anything!

-Expo version: 39.0
-run on the android platform.

[AhmadBadah]

    <View style={{ flex: 1, marginTop: 20 }}>
      <MathJax html={"Solve the equation $\\frac{x-2}{x+3}=\\frac{x-3}{2}$"} />
      <MathJax html={"A. $x=1\\pm\\sqrt{6}$"} />
      <MathJax html={"B. $x=1\\pm2\\sqrt{3}$"} />
      <MathJax html={"C. $x=1\\pm2i$"} />
      <MathJax html={"D. $x=-1\\pm\\sqrt{6}$"} />
      <MathJax
        html={
          "Solution<br><br>$\\frac{x-2}{x+3}=\\frac{x-3}{2}$$<br>$2(x-2)=(x-3)(x+3)$<br>$$2x-4=x^2-9$<br>$x^2-2x-5=0$<br><br>$x=\\frac{-(-2)\\pm\\sqrt{(-2)^2-4(1)(-5)}}{2(1)}$<br>$x=\\frac{2\\pm\\sqrt{24}}{2}$<br>$x=1\\pm\\sqrt{6}$"
        }
      />
    </View>

[AhmadBadah]

@calvinkei
please, help me!
thanks, advanced 🌹