X^2 + 3X - 18 = 0

(X + 6)(X -3) = 0

X = -6 and X = 3

-X^2 + X - 3 = 0

Can't be factored.

X^2 - 6x + 9 = 0

(X - 3)(X - 3) = 0

X = 3

-3X^2 - 5X + 3 = 0

I don't think this can be factored, thus I cannot find the solutions.

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