Need help with this question for some odd reason??? (1 Viewer)

[bossleymaths]

i need help with this question it is easy i know but i just cant put my head around it any help please

its worth 3 marks:

10^x + 15 ^x ALL OVER 2^5 * 3^x + 2^x+5

 

[tommykins]

what does it require us to do? simplify?

 

[QuLiT]

is the answer 5^x / 32

 

[bossleymaths]

what does it require us to do? simplify?

sorry my mistake,

yes it says simplify

and i dont have the answer it from an exam

 

[QuLiT]

then i'm pretty sure thats right but someone double check

 

[bossleymaths]

then i'm pretty sure thats right but someone double check

what did you do for the bottom part

i had 25^x for the top but then i forgot my basic index rules and couldn't do the bottom

 

[QuLiT]

10^x + 15^x/2^5.3^x + 2^x.2^5
=5^x(2^x+3^x) / 2^5 (2^x + 3^x)

= 5^x / 2^5