Question
Factorised form of $ p^2+ 30p + 216$ is $(p + 18) (p - 12).$

Answer

False.
Solution:
We have,
$ p^2+30 p+216=p^2+(12+8) p+216 $
$ =p^2+12 p+18 p+216 $
$= p(p + 12) + 18(p + 12)$
$= (p + 18)(p + 12)$

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