Respuesta :
Answer:[tex]x= - \frac{1 - \sqrt{57} }{4} , \frac{1 + \sqrt{57} }{4}[/tex]
Step-by-step explanation:
You first simplify it. You can use the quadratic formula. First, you have to divide by 2. [tex]x^{2} + \frac{x}{2} - 7 = 0[/tex] Now you can use the formula, so, the answer is [tex]x= - \frac{1 - \sqrt{57} }{4} , \frac{1 + \sqrt{57} }{4}[/tex]