Answer:
A
Step-by-step explanation:
That's the formula for the solution of a quadratic equation, like this:
[tex]a {x}^{2} + bx + c = 0[/tex]
The formula is:
[tex]x = \frac{ - b± \sqrt{ {b}^{2} \: - 4ac } }{2a} [/tex]
In your case:
[tex]a = 7 \\ b = - 5 \\ c = - 2[/tex]
The only answer that has c = -2 is the first one, A.
If you move the 5 to the left-hand side, it becomes -5 and with the +3 gives a -2.
