Question 170432
a)



{{{-5mp-30m}}} Start with the given expression



{{{-5m(p+6)}}} Factor out the GCF {{{-5m}}}



So {{{-5mp-30m}}} factors to {{{-5m(p+6)}}} 



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b)



{{{4xy-16xy^4}}} Start with the given expression



{{{4xy(1-4y^3)}}} Factor out the GCF {{{4xy}}}



So {{{4xy-16xy^4}}} factors to {{{4xy(1-4y^3)}}}