Mathematics
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OpenStudy (anonymous):
what is
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OpenStudy (anonymous):
OpenStudy (anonymous):
???
OpenStudy (anonymous):
It's an expression, what were you asked to do with it? factor?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
it said factor
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OpenStudy (anonymous):
What is the greatest thing both have in common?
OpenStudy (anonymous):
idk
OpenStudy (anonymous):
OpenStudy (anonymous):
\[n^3(4n+1)\]
OpenStudy (anonymous):
how do you type superscripts
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OpenStudy (anonymous):
Equation button right underneath.
OpenStudy (anonymous):
i dnt see tht
OpenStudy (anonymous):
Where you type your messages there are three buttons:
Equation, Draw, Attach File
OpenStudy (anonymous):
do u know this one
OpenStudy (anonymous):
Do you know how to factor basic expression?
Like this one (2x+x)
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OpenStudy (anonymous):
3x
OpenStudy (anonymous):
The greatest common factor they both share is x, so this is what you take out of the brackets.
OpenStudy (anonymous):
x(2+1)
OpenStudy (anonymous):
If you open the brackets by multiplying, you will get (2x+x) again.
OpenStudy (anonymous):
So what do you think is the greatest common factor 3y^2 and 4y share?
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OpenStudy (anonymous):
the y
OpenStudy (anonymous):
Correct, so he's the one you take out.
OpenStudy (anonymous):
What would you get?
OpenStudy (anonymous):
9
OpenStudy (anonymous):
\[y(3y-4)\]
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OpenStudy (anonymous):
OpenStudy (anonymous):
What is the greatest common factor all 3 share?
OpenStudy (anonymous):
x
OpenStudy (anonymous):
True, what about the numbers?
OpenStudy (anonymous):
all even
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OpenStudy (anonymous):
Think of it this way, by what number can all 3 be divided?
OpenStudy (anonymous):
(To give you a whole number)
OpenStudy (anonymous):
2
OpenStudy (anonymous):
Yes, so it's 2 and x, except since they're both common factors, it's 2x.
OpenStudy (anonymous):
\[2x(5x^2+4x-3)\]
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OpenStudy (anonymous):
this one is different
OpenStudy (anonymous):
No common variables, but there is a number.
OpenStudy (anonymous):
\[3(-x-y-z)\]
\[-3(x+y+z)\]
Both are correct forms, you could say that the common factor is +-3