Melody

Thanks very much Tiggsy.

I shall look at what you have presented so far :))

x2+8x+16=0

x^2+8x+16=0

I just pasted it into the calc :)

x^2+8x+16=0 = x=-4

ok asinus :)

I'll concede

It is a very good example of why it is so important to use brackets properly - even if the poster thinks they may not really be needed.

Hi Max,

I looked at your question but I am not good at these.  I have not seen Heureka in a while but hopefully he will drop in and give us an answer.  I love to learn how to do these from him.

OR Maybe guest 5 will come back and clarify what he was talking about because it didn't make any sense to me.  :(

My goodness I have never seen so many any answers for a trivial questions.

I'll add my 2 cents worth  :))

48/2(9+3)

=48/2*12

=24*12

=288

That is why you need to use brackets EVEN if you think the meaning is clear!

You mean synthetic I think  :)

There are a heap of you tube videos on this.

Here is one of them 

Here is another Australian Christmas song to entertain you :)) 

SONG

Yea , that'd be a bummer HSC ://

Actually, scroll down to admins answer #4

because you can post pictures without uploading ti elsewhere first

Here is an explanation of the calculus involved...

\(y=f(x)\\ \frac{dy}{dx}=f'(x)\\ \int_{x_1}^{x_2} \frac{dy}{dx}dx\\=\left[y\right]_{x_1}^{x_2}\\=\left[f(x)\right]_{x_1}^{x_2}\\ =f(x_2)-f(x_1) \)

So if you graph the differential curve against x and then find the area under that curve between x1 and x2 (you do this by finiding the definite integral of it between x1 and x2)    you will always get   f(x2)-f(x1)

I understand this bit perfectly I just don't comprehend why it works this way.  Maybe a pictorial explanation might help. ://  idk.