Which shows one way to determine the factors of x - 9x2 + 5x – 45 by grouping?
O x2(x - 9) – 5(x – 9)
O x2(x+9) – 5(x + 9)
O x(x2 + 5) - 9(x2 + 5)
x(x2 – 5) – 9(x2 - 5)