比a的5倍小3的数是 比a的2倍小3的数是______

比a的2倍小3的数是______  

比a的2倍小3的数是______

a的2倍为2a，∴比a的2倍小3的数是2a-3．

(m+n)的平方-n的平方

解(m+n)^2-n^2
=(m+n+n）（m+n-n）
=（m+2n）m
=m（m+2n）

(-16)的1004次方×(-0.25)的2009次方

原式=（4^2）^1004x(1/4)^2009
=4^2008x(1/4)^2008x1/4
=(4x1/4)^2008x1/4
=1x1/4
=1/4

410多400的是（），410多80的是（）。

410多400的是（810），410多80的是（490）

a的立方表示a的3倍。 （ ）

错
表示a乘以a乘以a

45与5的差是8的几倍?

45与5的差是8的几倍?
5倍
45-5=40
40=8x5

x与y的3倍的和是17

x+3y=17

x的15倍与17的差是3.7．

15x-17=3.7，
       15x=20.7，
         x=1.38．

怎么做的，要对的

anything much

Green Day的Too Much Too Soon的歌词.

She's always living like she's running out of time
Too much just ain't enough to keep her satisfied
Her plastic card is filled with nothing es to mind
It's now her oupation that she's overqualified
The looks are always so deceiving
The truth is always misconstrued
To you...
Too much too soon
Too little and now your ing unglued
Too much too soon
Too late and now it sucks to be you
Too much too soon
Too little and now your ing unglued
Too much too soon
Too late and now it sucks to be you too
He's talking shit about how it's better way back when
He lives every waking moment as means to an end
We are, we are but I'm not, I never used to be
So god bless your fucking past and to hell with your glory
The looks are always so deceiving
The truth is always misconstrued
To you...
Too much too soon
Too little and now your ing unglued
Too much too soon
Too late and now it sucks to be you
Too much too soon
Too little and now your ing unglued
Too much too soon
Too late and now it sucks to be you too
Too bad, so sad, this is goodbye and bon voyage
Farewell, see you in hell I hope you rest in pieces
(Fuck you!)
Oh..oh oh oh oh...
Oh..oh oh oh oh...
Too much too soon
Too little and now your ing unglued
Too much too soon
Too late and now it sucks to be you
Too much too soon
Too little and now your ing unglued
Too much too soon
Too late and now it sucks to be you too
Woah...oh oh oh oh..