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Factorisation by Common Factors

State True or...

Question

State True or False: $3 x^{2} - x - 4$ $= (3 x - 1) (x + 4)$

A

True

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B

False

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Solution

The correct option is A True
$3 x^{2} - x - 4$
$= 3 x^{2} + 3 x - 4 x - 4$
$= 3 x (x + 1) - 4 (x + 1)$
$= (3 x - 4) (x + 1)$

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