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Factors of Algebraic Expressions and Factorisation

Simplify: x2...

Question

Simplify:
$x^{2} - 22 x + 105$ .

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Solution

Now,
$x^{2} - 22 x + 105$
$= x^{2} - 15 x - 7 x + 105$
$= (x - 15) (x - 7)$ .

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