Question 389073
Break them down to their prime factors.
Example:
{{{36x^2+27x^5}}}
.
.
{{{36x^2=2^2*3^2*x^2}}}
{{{27x^5=3^3*x^2}}}
Look at the product of factors in common to both,
{{{GCF=3^2*x^2}}}
.
.
{{{36x^2+27x^5=9x^2(4+3x^4)}}}