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Factorisation by Regrouping Terms

Factorise : x...

Question

Factorise : $x^{2} + 6 x + 8$

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Solution

$x^{2} + 6 x + 8 = x^{2} + 4 x + 2 x + 8 = x (x + 4) + 2 (x + 4) = (x + 4) (x + 2)$

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