I am not Amy but I would love to help you.
[tex]x^2 + 3x = 22[/tex]
[tex]x^2+ 3x - 22 = 0[/tex]
[tex]\Bigg( {Formula: \ x = \frac{-b \pm \sqrt{b^2 -4ac} }{2a} \Bigg)[/tex]
[tex]a = 1, \ b = 3, \ c = -22[/tex]
[tex]x = \frac{-3 \pm \sqrt{3^2 -4(1)(-22)} }{2(1)}[/tex]
[tex]x = 3.42 \ or -6.42[/tex]
