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Factorise x^(2)-11x+18

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To factorize the quadratic expression x^2 - 11x + 18, you need to find two numbers that multiply to the constant term (18) and add up to the coefficient of the linear term (-11). These numbers are -2 and -9 because (-2) * (-9) = 18, and (-2) + (-9) = -11.

Now, you can use these numbers to factorize the expression:

x^2 - 11x + 18 = (x - 2)(x - 9)

So, the factored form is:

(x - 2)(x - 9)

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