With the help of the quadratic equation formula
9x2-9x-10 = (3x+2)(3x-5) when factored
x2-9x can be factored by taking x out of each term x(x-9)
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
That factors to 3x(3x - 1)
(9x + 8)(9x - 8)
x = -2/3,7/6
(3x + 8)(3x - 8)
5x * 9x = 45x2 =====
It is a difference of squares. 9x^2-49=(3x+7)(3x-7)
2x2-9x+4 = (2x-1)(x-4) when factored