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Mathematics

Grade10

Easy

Question

Factorise x²– 13x + 12.

(x – 11) (x + 1)
(x + 1) (x – 12)
(x – 1) (x + 11)
(x – 1) (x – 12)

The correct answer is: (x – 1) (x – 12)

$text Factors of end text 12 text are end text minus 1 text and end text minus 12 text . end text text And end text left parenthesis negative 1 right parenthesis plus left parenthesis negative 12 right parenthesis equals left parenthesis negative 13 right parenthesis left parenthesis x minus 1 right parenthesis left parenthesis x minus 12 right parenthesis equals x squared minus 12 x minus x plus 12 equals x squared minus 13 x plus 12$

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