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Factorisation by Common Factors

Factorise: x3...

Question

Factorise:
$x^{3} + 2 x^{2} + 5 x + 10$

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Solution

X³ + 2x² + 5x + 10

X³ + 2x² + 5x + 10

= x² (X + 2) + 5 (x + 2)

= (x² + 5) (x + 2)

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