Question

разложите на множители многочлен 39-3c^5+2c^7-26c^2​

Answer 1

$39-3c^5+2c^7-26c^2=(39-26c^2)+(-3c^5+2c^7)=\\\\=13\, (3-2c^2)-c^5(3-2c^2)=(3-2c^2)(13-c^5)$