What is the result of subtracting in the division problem shown below?
3 x squared minus 4x minus 2 StartLongDivisionSymbol 6 x cubed + x squared minus 10 x minus 1 EndLongDivisionSymbol. minus 6 x cubed minus 8 x squared minus 4 x to get a remainder of blank and a quotient of 2 x + 3.
-7x² - 14x
-7x² - 6x
9x² - 14x
9x² - 6x