Your instructions got messed up, but I'll try my best to figure out what you said.
Lets set the equations to equal each other
x² + 4 + 2x = 3x+2
x² - x + 2 = 0
x² - x + (-0.5)² = 2
(x-0.5)² = 2
x-0.5 = √2
x=0.5 [tex]+\\-[/tex]1.414
x= 1.914
or/and
x= -0.914
