Factorise $y^{2} + y - 132$

(y + 12) (y - 11)

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(y - 12) (y - 12)

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(y - 12) (y - 11)

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(y - 12) (y + 12)

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Solution

The correct option is D $(y + 12) (y - 11)$
$y^{2} + y - 132$
$= y^{2} + 12 y - 11 y - 132$
$= y (y + 12) - 11 (y + 12)$
$= (y + 12) (y - 11)$

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