Respuesta:
Explicación paso a paso:
1) 3x - 8x = (3-8)x = -5x
2)[tex]6a^{2} b + 7a^{2} b[/tex] = [tex](6+7)a^{2} b = 13a^{2} b[/tex]
3) [tex]-6xy^{2} - xy^{2}-3xy^{2}= (-6-1-3)xy^{2} = -10xy^{2}[/tex]
4) [tex]4xy^{4}z^{3} - 4xy^{4}z^{3}= (4-4)xy^{4}z^{3} = 0[/tex]
5)[tex]-2a^{2}b + 12a^{2}b= (-2+12)a^{2}b = 10a^{2}b[/tex]
