3x2-9x = 0
x(3x-9) = 0
x = 0 or x = 3
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9x2-9x-10 = (3x+2)(3x-5) when factored
3
9x^2 + 2^2 = 0 3x +2 = 0 therefore: x=-2/3
Assuming you mean 3x - 2 = 9x - 5...3x - 2 = 9x - 53x + 3 = 9x3 = 6x0.5 = x
9x2 + 3x / 3x equals (3x + 1).9x2 + 3x divided by x is 9x + 3 , and then divided by 3 yields the 3x +1.