For the equation y = 6x2−9x+22, choose the correct application of the quadratic formula. x equals negative six plus or minus the square root of six squared minus four times negative nine times twenty-two, all divided by two times negative nine x equals six plus or minus the square root of six squared minus four times negative nine times twenty-two, all divided by two times negative nine x equals negative nine plus or minus the square root of negative nine squared minus four times six times twenty-two, all divided by two times six x equals nine plus or minus the square root of negative