Question

1. solve by using the quadratic formula. 5x^2+x=3
2. solve by completing the square. x^2=5x+2
3.solve by using the square roots method. 5(x-2)^2=3

Answer 1

are you studying quadratic equations?

If so, then I am surprised that you cannot do these straightforward questions.
Do you not have a textbook?

I will do the first one

5x^2+x=3
5x^2 + x - 3 = 0

x = (-1 ±√(1 - 4*5*(-3))/10

x = (-1 ±√61)/10