Factorise:
$p^{2} + p - 56$

(p + 8) (p - 7)

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(p + 8) (2 p + 7)

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(p + 8) (2 p - 7)

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(p - 8) (p - 7)

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Solution

The correct option is A $(p + 8) (p - 7)$
$p^{2} + p - 56$
$= p^{2} + 8 p - 7 p - 56$
$= p (p + 8) - 7 (p + 8)$
$= (p - 7) (p + 8)$

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