Can someone help me please please?

15 points ! ~ see if you know the answer to both you!

Having a hard time understanding this question (see attachment).

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()