1.

Factorise : x2 - 14x + 24. 

Answer»

Product ac = 24 & b = -14 

∴ Split the middle term as - 12 & - 2 

⇒ x2 - 14x + 24 

= x2 - 12 - 2x + 24 

⇒ x(x - 12) - 2 (x - 12) = (x - 12)(x - 2) 



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