x2 – x – 132 = 0


(x) x2 – x – 132 = 0

Sol. x2 – x – 132 = 0

 x2 – 12x + 11x – 132 = 0

x (x – 12) + 11 (x – 12) = 0

(x – 12) (x + 11) = 0

x – 12 = 0 or x + 11 = 0



x = 12 or x = –11

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