1 Answer

Asky · Answer 1 · 2023-10-28T16:36:59+0000

we have the second degree polynomial

we must find two numbers a,b such that

$\begin{gathered} x^2-11x+18=(x+a)(x+b)\text{ and} \\ a+b=11 \\ ab=18 \end{gathered}$

We can see that, a=-2 and b=-9 fulfill the above conditions. Therefore, we have

$x^2-11x+18=(x-2)(x-9)\text{ }$

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