maxwell has a maths exam tomorrow and he is worried

[Maxwell.]

yes this is kind of important

http://www.sqa.org.uk/pastpapers/papers/papers/2014/N5_Mathematics_all_2014.pdf
http://www.sqa.org.uk/pastpapers/papers/instructions/2014/mi_N5_Mathematics_all_2014.pdf

basically I'm looking at practice papers and I have the answers, some questions though I'm buttforget clueless on so I've decided to make a topic and ask all the needed questions

can anyone solve this/knows how to solve this and show me their working? this is non calculator and I think you need to factorise first

[Ad Bot]

[kobble]

This is just completing the square.

First you half the x coefficient (i.e 14/2 = 7) and set that = a
So you have:

(x-7)^2 + b

Then expand the brackets:

x^2 - 14x + 49 + b

Then looking at the constants, you know that 49 + b = 44
From this you find what b is: b = 44-49 = -5
Then the final answer is:

(x-7)^2 - 5

There are various ways to do this depending on how you were taught.

[SimpleFish]

I'm clueless about this, but good luck on them man!

[Kyuande]

This is why I have trouble in Trigonometry

[Malleo100]

There is 73% chance Maxwell will fail algebra

[Space1255]

Just remember the formulas and write down your work so if you forget up somewhere you'll be able to start from there instead of starting over.
aka study a bit more which you're already doing. Good work.

[Maxwell.]

Just remember the formulas and write down your work so if you forget up somewhere you'll be able to start from there instead of starting over.
aka study a bit more which you're already doing. Good work.

we're given those formulas in the exam, but that doesn't excuse the fact I absolutely suck at mental math
thanks though

This is just completing the square.

First you half the x coefficient (i.e 14/2 = 7) and set that = a
So you have:

(x-7)^2 + b

Then expand the brackets:

x^2 - 14x + 49 + b

Then looking at the constants, you know that 49 + b = 44
From this you find what b is: b = 44-49 = -5
Then the final answer is:

(x-7)^2 - 5

There are various ways to do this depending on how you were taught.

I vaguely remember being taught it this way, this was a huge reminder for me, thanks

for this though, I'm kind of stuck, I'm guessing you factorise and then put it into brackets? this is from the calculator part lower down

[Frankie²]

you do the math part and you get an answer

[ChappersTeddy]

You tried looking on GCSE Bitesize? I know they cover Scottish curriculum.

They don't, you just got pranked bro.
They kind of do because I know they go over factorisation and stuff quite well but it's not solely Scottish[/s]

[Bloody Mary]

for this though, I'm kind of stuck, I'm guessing you factorise and then put it into brackets? this is from the calculator part lower down

Consider: (n^5 * 10n)/(2n^2) =  (10n^6)/(2n^2). You should know what to do from there.

[--LegoPepper--]

10n^6 / 2n^2
10 / 2 = 5
6 - 2 = 4
so 5n^4

[Maxwell.]

You tried looking on GCSE Bitesize? I know they cover Scottish curriculum.

They don't, you just got pranked bro.
They kind of do because I know they go over factorisation and stuff quite well but it's not solely Scottish[/s]

I could use the GSCE or national 5 section, which I've been doing as well as keeping this topic up, but I still really don't get it and it'd be better if I saw other forumers doing it

10n^6 / 2n^2
10 / 2 = 5
6 - 2 = 4
so 5n^4

I've never saw it done this way before, I guess I'll try to do it my way and compare the two

[ChappersTeddy]

I could use the GSCE or national 5 section, which I've been doing as well as keeping this topic up, but I still really don't get it and it'd be better if I saw other forumers doing it

I see, textbooks and websites aren't exactly the best source of information because they're always really blunt and don't actually explain well enough

[XR-7]

I'm in my calculus classroom right now waiting for my final but my professor is late.

Best o luck tuh ya, mate