Factorise: x² +3x +x+ 3 – InterviewSolution

1.

Factorise: x² +3x +x+ 3

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$→x² +3x +x+ 3 = 0$

$→x(x + 3) + 1(x + 3) = 0$

$→(x + 1)(x + 3) = 0$

$→x = - 1 \: \: \: x = - 3$

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