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Factorise the following:
$3m^2-17m-20$
Given :
Given expression is $3m^2-17m-20$.
To do :
We have to factorise the given expression.
Solution :
$3m^2-17m-20=3m^2-20m+3m-20$
$=3m(m+1)-20(m+1)$
$=(3m-20)(m+1)$
Therefore,
$3m^2-17m-20=(3m-20)(m+1)$ .
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