Question

Розкладіть на множники
1)ах^3-ау^3

2)-2m^3-n^3

Answer 1

$\displaystyle\bf\\1)\\\\ax^{3} -ay^{3} =a\cdot(x^{3} - y^{3} )=a\cdot(x-y)\cdot(x^{2} +xy+y^{2} )\\\\2)\\\\-m^{3} -n^{3} =-(m^{3} +n^{3} )=-(m+n)\cdot(m^{2} -mn+n^{2})$