Melody

this should get you started!

Thanks for enlightening me    

Thanks Heureka  

Thanks for answering htzhang    

Hi Nirvana,

There was a link so the post was automatically locked.

I have unlocked it.   

Maybe it will help you. 

I am not very good with matrices and cannot answer an open ended question.

Sorry about that.

There is nothing to solve Tom because there is no equal sign.  

2^(2x+3) -2^(x+2) -3 * 4

\(2^{2x+3}-2^{x+2}-3*4\\ 2^{2x+3}-2^{x+2}-12\\ 2^{x+2+x+1}-2^{x+2}-12\\ 2^{x+2}*2^{x+1}-2^{x+2}-12\\ 2^{x+2}(2^{x+1}-1)-12\\ 4*2^x(2*2^x-1)-12\\ 8*2^{2x}-4*2^x-12\\ 8*4^x-4*2^x-12\\ 4(2*4^x-2^x-3)\)

I am just mucking around.

I really do not know what the question wants.

Well you could have a toffee apple, that way you sort of get the best of both worlds :)

LOL Who dreamed up that question!

Lets see I know how to use Google.

But candy bars taste better!   

Hi Tom,

Many questions annoy me too.

Generally it is bet just to ignore them or to write a comment saying why you are not answering.

Someone will probably come in and answer over the top of you though. 

Sometimes (but certainly not always) that annoys me the most.

Try expanding it out htzhang.

We will tell you if you make a mistake.

You cannot learn anything just by copying other people's answers.