Question

factorise
$x ^{2} + 5x + 4$
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Answer 1

☆Answer☆

• x² + 5x + 4 = 0

=> x² + 4x + x + 4 = 0

=> x(x + 4) +1(x + 4) = 0

=> (x+4) (x+1) = 0

(x+4) = 0 OR (x+1) = 0

x = -4 OR x = -1

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