Factorise:9m2 + 24m + 16
We have:
$9 m^{2}+24 m+16=(3 m)^{2}+2 \times 3 m \times 4+(4)^{2}$
$=(3 m+4)^{2}$
$\therefore 9 m^{2}+24 m+16=(3 m+4)^{2}$
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