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Factorise x2 + 5x - 84

User JennEDVT
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1 Answer

9 votes

(x - 7)(x + 12)

Answer:


{x}^(2) + 5x - 84 \\ {x}^(2) + 12x - 7x - 84 \\ x(x + 12) - 7(x + 12) \\ (x - 7)(x + 12)

User MayTree
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