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

This Question is Closed

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

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

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

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

Shikar23234
 3 years ago
Best ResponseYou've already chosen the best response.0Oh!!!! 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?

sam30317
 3 years ago
Best ResponseYou've already chosen the best response.1Show me your answer when finished

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

sam30317
 3 years ago
Best ResponseYou've already chosen the best response.1Pay 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??

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

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

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

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

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

sam30317
 3 years ago
Best ResponseYou've already chosen the best response.1Simplify 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.

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

sam30317
 3 years ago
Best ResponseYou've already chosen the best response.1The 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

sam30317
 3 years ago
Best ResponseYou've already chosen the best response.1Yes, u do the same thing

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

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

sam30317
 3 years ago
Best ResponseYou've already chosen the best response.1No 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

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

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

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

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

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

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

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

sam30317
 3 years ago
Best ResponseYou've already chosen the best response.1Cool. Glad i helped somehow
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