Question

2x2 - 3x - 4= x2 + 2x + 2

Answer 1

2x² - 3x - 4 = x² + 2x + 2
2x² - x² - 3x - 2x - 4 - 2 = 0
x² - 5x - 6 = 0

$x = \frac{5 +- \sqrt{25+24} }{2}$
$x = \frac{5 +- \sqrt{49} }{2}$
$x = \frac{5 +- 7 }{2}$

x1 = (5 + 7) : 2 = 12 : 2 = 6
x2 = (5 - 7) : 2 =  -2 : 2 = -1

Las dos posibles soluciones son 6 y -1

Answer 2

espero que te sirva