Can anyone please help me!!

Solve the quadratic equation by completing the square. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)

4x^2 -3x-7 =0
x= ?


SECOND Question:
Use the discriminant to determine the number the number of real solutions of the quadratic equation.

2x^2 - 6x + 6 =0

Answer choices:
Zero
One
Two