Answer :

naǫ
[tex]20p=\textcircled{2} \times \textcircled{2} \times 5 \times \textcircled{p} \\ 36p=\textcircled{2} \times \textcircled{2} \times 3 \times 3 \times \textcircled{p} \\ GCF(20p,36p)=\textcircled{2} \times \textcircled{2} \times \textcircled{p}=4p \\ \\ 20p+36p=4p(5+9)[/tex]

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