andriod09
  • andriod09
Pythagoreum problem please help! Triangle is in comments
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
andriod09
  • andriod09
|dw:1348498599367:dw| ik what the answers are, i just need help finding how to get them They are 5", 12", and 13"
cgreenwade2000
  • cgreenwade2000
The Theorem is a^2 + b^2 = c^2 Where a and b are sides of the right triangle and c is the hypotenuse of the right triangle.
andriod09
  • andriod09
ik the thirum, i just havn't done it in about 3 years.

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cgreenwade2000
  • cgreenwade2000
Ok. Let a = x and b = x+7 therefore, (x)^2 + (x+7)^2 = (8+x)^2
andriod09
  • andriod09
okay, then what?
andriod09
  • andriod09
@cgreenwade2000
andriod09
  • andriod09
@cshalvey @Callisto @Yahoo!
anonymous
  • anonymous
\[(x+8)^2 = x^2 + (x+7)^2\]
anonymous
  • anonymous
nw expand this....... \[(a+b)^2 = a^2 + 2ab + b^2\]
andriod09
  • andriod09
please do not use the equation button i have a mathjax error and it annoys me. i see the slashes and brackets and braces.
anonymous
  • anonymous
(x+8)^2=x^2+(x+7)^2
anonymous
  • anonymous
lol.... ) (x)^2 + (x+7)^2 = (8+x)^2
andriod09
  • andriod09
okay?? then you do??????
Callisto
  • Callisto
Expand the terms for both sides of the question, then simplify it. As Yahoo! mentioned, you can expand the term (a+b)^2 by using the identity (a+b)^2 = a^2 + 2ab + b^2. If you don't know where this identity comes from, you can simply perform multiplication for the term, i.e. (a+b)^2 = (a+b)(a+b), now expand it. What have you got for now?
andriod09
  • andriod09
|dw:1348501546848:dw|
andriod09
  • andriod09
@Callisto that made no sense to me. :c
Callisto
  • Callisto
May I know what made no sense to you?
andriod09
  • andriod09
"Expand the terms for both sides of the question, then simplify it. As Yahoo! mentioned, you can expand the term (a+b)^2 by using the identity (a+b)^2 = a^2 + 2ab + b^2. If you don't know where this identity comes from, you can simply perform multiplication for the term, i.e. (a+b)^2 = (a+b)(a+b), now expand it."
Callisto
  • Callisto
Which part you don't understand?
andriod09
  • andriod09
the expansion parts.
Callisto
  • Callisto
Do you know how to expand (a+b)^2?
andriod09
  • andriod09
no. im homeschooled, i havn't even done pythagereum theory much.
anonymous
  • anonymous
x^2+16x+64=x^2+x^2+14x+49
Callisto
  • Callisto
That is not Pyth. Thm. It's just simple multiplication of some factors. For instance, \[x^2 = x \times x\]\[x^3 = x \times x \times x\] Similarly, \[(a+b)^2 = (a+b) \times (a+b)\]It can be expanded in this way: \[(a+b)^2 = (a+b) \times (a+b) = a(a+b) + b(a+b)\]Can you further expand and simplify it?
andriod09
  • andriod09
i can not see the equations from the eqtation button!!!!!!!!!!
Callisto
  • Callisto
equation button is for you to type latex...
Callisto
  • Callisto
*type in latex
andriod09
  • andriod09
yes, but i see: \[\\]\[\\\]][\\]\[\\] thats what i see, i see evey single slash, all the brackets, the braces, everything
Callisto
  • Callisto
\sqrt{x} = \(\sqrt{x}\) and so on.. You can try these on the equation button. Though, back to your question, are you still having trouble with your question?
andriod09
  • andriod09
yes. and i see the \sqrt{x} = \(\sqrt{x}\) like i see all the braces, the terms for them, and everything like that. my mathjax thing isn't working atm
Callisto
  • Callisto
Can you see what I've typed in latex?
andriod09
  • andriod09
no. i see the equation as if you write it with out the button, like i don't see the (x)^2 i see the ()^{} and things like that. and yes, i still am having problems with my problem
Callisto
  • Callisto
|dw:1348503516047:dw|
andriod09
  • andriod09
yes.
Callisto
  • Callisto
Now, can you expand a(a+b) +b(a+b) ?
andriod09
  • andriod09
how?
Callisto
  • Callisto
Distributing a into a+b and b into a+b
andriod09
  • andriod09
then??
Callisto
  • Callisto
Expand it first.
andriod09
  • andriod09
how?
Callisto
  • Callisto
a(a+b) = a(a) + a(b) = a^2 + ab Can you try b(a+b) now?
andriod09
  • andriod09
is it: b(a+b)=b(a)+b(b)=b^2+ba?
Callisto
  • Callisto
Yes! Now combine them What is a(a+b) + b(a+b) ?
andriod09
  • andriod09
(a(a+b) = a(a) + a(b) = a^2 + ab)+(b(a+b)=b(a)+b(b)=b^2+ba)?
Callisto
  • Callisto
Nope not really.. can you try again?
andriod09
  • andriod09
what would it be then?
andriod09
  • andriod09
@ash2326
andriod09
  • andriod09
@ganeshie8
andriod09
  • andriod09
@Callisto
andriod09
  • andriod09
@ash2326
andriod09
  • andriod09
someone help me please!
andriod09
  • andriod09
|dw:1348510329568:dw|

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