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Shikar23234
Group Title
Simplify: (x  4)2
x2  16
x2  8
x2  8x + 16
x2  16x + 8
 2 years ago
 2 years ago
Shikar23234 Group Title
Simplify: (x  4)2 x2  16 x2  8 x2  8x + 16 x2  16x + 8
 2 years ago
 2 years ago

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sam30317 Group TitleBest ResponseYou've already chosen the best response.1
When you have a squard function (or any function raised to an exponent), u need to set it up as: (x4)(x4)
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
dw:1339623456630:dw
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
So it would be x2 8?
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Nope. U now need to distribute the x and 4 (multiply) with the terms in the OTHER parenthesis
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
(x4)(x4)= (x*x)  (4*x) = (x^24x) < this is only part of it
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
Oh!!!! So you basically just multiply the x to the other side and then do the same with the 4. So it would be 4 times x then 4 times 4. Right?
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Show me your answer when finished
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
So i know the 16 goes on the very end so im thinking its C but i dont know how it gets the 8.
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Pay attention to your pos/neg signs when you combine like terms. x^2 4x4x+16 > Because you have two of the same (4x), u combine them. 44= 8. Do u see??
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
Sort of. So its basically x  y + (y*y) ?
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Errr, i dont understand that little formula. Im sorry. Let me try another way. 1st, do u see why I have two 4's??
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
Uhm yea. because its (x4) and (x4). So you just put them togeather. x= x2 and 4= 8. Right?
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Hmmm, u're right. But Hopefully u wont confuse yourself with that formula u had before
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
Well what i dont understand is why you have to multiply it when your just simplifying it.
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Simplify means that you are turning the function/equation into ONE form. Basically, you want to combine all like terms on both sides and reduce it to it's simplest form.
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
But then what if your multiplying it? For instance 5xy(2x  y). Does that mean you just to the same thing?
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
The 1st problem u had above, is not giving us any information. But in it's simplest form, we can find maximums & minimums of a graph, points of intersection, slope. You'll learn about all that stuff later. But you cant find the information you need with it being in the simplest form
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Yes, u do the same thing
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
BUT, 5xy is considered ONE term. Dont separate the 5 from x & y
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
So you just separate the 5xy from the (2x  y) ? Then multiply the 2 together?
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
No need to separate anything. A number infront of a parenthesis also means to multiply. Or, to distribute the 1st number with each number on the inside of the parenthesis
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Try 10(9x+3)
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
It means that (10*9x) PLUS (10*3).
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
dw:1339625177685:dw
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
So it would be 90x+30. Would you need to simplify?
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
CORRECT! If it is simplified again, it would go back to its orginal form 10(9x+3)
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Ok, i really suck at explaining! im sorry
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
Ohhhhhh! I understand now! Thank you!!!!!
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
cooool! No problem. Do u get the 8 though? I can draw a pic.
 2 years ago

Shikar23234 Group TitleBest ResponseYou've already chosen the best response.0
Yea i understand that part now. Seriously though thanks abunch!
 2 years ago

sam30317 Group TitleBest ResponseYou've already chosen the best response.1
Cool. Glad i helped somehow
 2 years ago
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