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mufc

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I've got a math test today and im stuck on this kink of stuff

 

Simplify:

 

1)a) 2 + k x k

 

b) 2 x k + k

 

c) 2 + k + k

 

d) 2 x k x k

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A) 2 +k^2

B) 2k+k

c) 2+2k

d) 2k^2

 

 

Right? I think. icon14.gif

fbeRElG.png

 

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1. a. 2 + k x k

 

Do the multiplication first, then add, so you get: 2 + k²

 

 

b. 2 x k + k

 

Do the multiplication first, then add: 2k + k = 3k

 

 

c. 2 + k + k = 2 + 2k = 2(1 + k)

 

d. 2 x k x k = 2k²

clEsyRO.gif

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2 + k x k = k² + 2

 

2 x k + k = 3k

 

2 + k + k = 2k + 2

 

2 x k x k = 2k²

 

 

 

 

 

 

 

I dunno....its been a while since high school.

 

 

[edit]f*ck...I lose[/edit]

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That's some easy sh*t. You just need to remember this mnemonic device, which tells you the order in which to do everything: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. PEMDAS.

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Digïtál £vîl
Isn't that 7th or 8th grade stuff?

I dont know, im 13.

So what, since you are only 13 that means you don't know what grade you are in?

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Isn't that 7th or 8th grade stuff?

I dont know, im 13.

So what, since you are only 13 that means you don't know what grade you are in?

I dont know what grade it is in american school, over here it primary school (1-7) then secoundary school(1-6).

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Digïtál £vîl
Isn't that 7th or 8th grade stuff?

I dont know, im 13.

So what, since you are only 13 that means you don't know what grade you are in?

I dont know what grade it is in american school, over here it primary school (1-7) then secoundary school(1-6).

You can just say what grade you are over there and people will convert it for you. Just like how they did your math for you. Lazy.

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That's some easy sh*t. You just need to remember this mnemonic device, which tells you the order in which to do everything: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. PEMDAS.

Acutally there is a new part, Parentheses, Bar, Exponents, Multiplication, Division, Addition, Subtraction.

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Isn't that 7th or 8th grade stuff?

I dont know, im 13.

So what, since you are only 13 that means you don't know what grade you are in?

I dont know what grade it is in american school, over here it primary school (1-7) then secoundary school(1-6).

You can just say what grade you are over there and people will convert it for you. Just like how they did your math for you. Lazy.

its 2 in the morning and im going to sleep im sorry for whatever i did.

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Digïtál £vîl
Isn't that 7th or 8th grade stuff?

I dont know, im 13.

So what, since you are only 13 that means you don't know what grade you are in?

I dont know what grade it is in american school, over here it primary school (1-7) then secoundary school(1-6).

You can just say what grade you are over there and people will convert it for you. Just like how they did your math for you. Lazy.

its 2 in the morning and im going to sleep im sorry for whatever i did.

Are you even going to thank them for doing your work for you?

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