Can somebody please show me how you do this problems

Question

When you have a trinomial:find the x

Factoring

5 2x^2 -4x-6=0

Completing the square

6 2x^2-4x+3=9

Quadratic formula

7 2x^2-4x=6

Answer 1

2(x+1)(x-3)

2x^2-4x-6=0

x²-2x-3=0

(x-1)²-1-3=0

x-1=±2

x=-1,3

x²-2x-3=0

x=(2±sqrt(4-12))/2