Respuesta :

Answer:3a4-2a2+5a-10)-(2a4+4a2+5a-2)  

remove first set of parentheses:

 

apply "-" sign to second parentheses (distributive prop):

 

the - of a - becomes a + :

 

combine like terms:

 

Factor out the variables that are alike:

{(1)a^4 + (-6)a^2 + 0a + (-8)}}}  

0a is just 0, makea the "a" term go away:

 

can try to factor as squares, but it doesn't work out:

8 = (-4) x (+2) product factors cannot add to make 6.

Step-by-step explanation:

737737383 hope this helps