Solve the quadratic equation by completing the square 3x^2 -6x-4=0

Step-by-step explanation:

3x² -6x-4=0

3(x² -2x) - 4 =0

3(x²-2x+1-1)-4 = 0 completing the square

3((x - 1 )² - 1 ) - 4 = 0

3(x -1 )² -3 - 4 = 0

(x - 1 )²  = 7/3

x - 1 =√(7/3)  or    x - 1= - √(7/3)

x = 1+√(7/3)   or x = 1-√(7/3)

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.