Simplify
(3a4 – 2a2 + 5a – 10) – (2a4 + 4a2 + 5a – 2).
Btw, i wan't to know how to solve this problem, i do not want to know the direct answer to this problem. (P.s.) Thanks a whole lot! ^_^

Question

Simplify 
(3a4 – 2a2 + 5a – 10) – (2a4 + 4a2 + 5a – 2).
Btw, i wan't to know how to solve this problem, i do not want to know the direct answer to this problem. (P.s.) Thanks a whole lot! ^_^

anonymous · Answer

i will give medals.

anonymous · Answer

@jhonyy9 @acxbox22 @Anaise

anonymous · Answer

@pooja195 @Miracrown

anonymous · Answer

i think its a^4 - 6a^2 - 8 is this correct? if not, please show me how to fix

jhonyy9 · Answer

but how you have got this result ?

jhonyy9 · Answer

write here your calculi please

dls · Answer

By the rule of exponents we know that $\Large C_1 a^x - C_2 b^y$ can only be subtracted if $\Large a=b $ and $\Large x=y$ i.e only like terms can be subtracted from like terms.
So you can subtract $\Large 3a^4 - 2a^4 $ but you cannot subtract $\Large 3a^4 - 2a^5 $ or $\Large 3a^4 - 2b^4 $

dls · Answer

Use this result to solve your question :)

jhonyy9 · Answer

do you understand @DLS what have wrote above ?

anonymous · Answer

well, here are my calculations

jhonyy9 · Answer

ok. wait

jhonyy9 · Answer

so where are your calculi - these are more simply than you write now

anonymous · Answer

(3a^4 – 2a^2 + 5a – 10) – (2a^4 + 4a^2 + 5a – 2)
3a^4 – 2a^2 + 5a – 10 – (2a4 + 4a2 + 5a – 2)
3a^4 – 2a^2 + 5a – 10 – 2a^4 + 4a^2 - 5a - (– 2)
3a^4 - 2a^2 + 5a - 10 - 2a^4 - 4a^2 -5a + 2
3a^4 - 2a^4 - 2a^2 - 4a^2 + 5a - 5a - 10 + 2
a^4 - 6a^2 - 8

anonymous · Answer

does that make sense? or is it wrong somewhere?

anonymous · Answer

@jhonyy9

jhonyy9 · Answer

nice work - !!!

do you understand it now sure ?

anonymous · Answer

yes, thank you very much! ^_^

jhonyy9 · Answer

was my pleasure 

good luck

anonymous · Answer

oh, can you give DLS the best response on this one @jhonyy9

anonymous · Answer

he helped me too, but i cant give 2 best responses

jhonyy9 · Answer

what mean DLS ? the best respons to you i have do it above for you

anonymous · Answer

@DLS  can you give @jhonyy9 your medal, and ill give you my medal?

jhonyy9 · Answer

ok ty. i understand it now 

good luck

anonymous · Answer

ok, can you do that instead jhonny?

anonymous · Answer

you give @DLS a medal, and i will give you a medal. @jhonyy9

anonymous · Answer

oh, nevermind xD

anonymous · Answer

i think it worked out. ok thanks! ^_^