State whether True or False.
Factorization of $a^{2} - 23 a + 42$ is $(a - 21) (a - 2)$ .

True

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False

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Solution

The correct option is A True
$F a c t o r i z i n g a^{2} - 23 a + 42 = a^{2} - 21 a - 2 a + 42 = a (a - 21) - 2 (a - 21) = (a - 21) (a - 2)$

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