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jhonyy9 (jhonyy9):
us a^2 -b^2 =(a-b)(a+b)
OpenStudy (anonymous):
So when I've converted it, it's already factorised?
jhonyy9 (jhonyy9):
converted how ?
OpenStudy (anonymous):
I mean, in the given a+2^2 is a^2, same goes with b right? So after I converted it to the other side of the equal sign, will it already be considered as factorised?
OpenStudy (anonymous):
By other side of the equal sign, I mean in the main formula
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jhonyy9 (jhonyy9):
so at finaly how you have got it ?
jhonyy9 (jhonyy9):
so a here is a+2 and b is a-3
OpenStudy (anonymous):
Yes, right?
jhonyy9 (jhonyy9):
than will be firstly (a+2-(a-3))(a+2+(a-3))
OpenStudy (anonymous):
Yes, but is that the end of the equation? Will that mathematical sentence be considered as "factorised"?
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jhonyy9 (jhonyy9):
yes if you continue it
jhonyy9 (jhonyy9):
make the calcules
OpenStudy (anonymous):
So, if I continue the equation, I will end up with the answer?
jhonyy9 (jhonyy9):
i like to see it
OpenStudy (anonymous):
Okay, I'll try now
(a+2)^2 - (a-3)^2
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OpenStudy (anonymous):
=((a+2)+(a-3))((a+2)-(a-3))
OpenStudy (anonymous):
=(2a-1)(-1)
OpenStudy (anonymous):
am I right so far?
jhonyy9 (jhonyy9):
no continue it
OpenStudy (anonymous):
Then, it will become -2a+1. Am I correct?
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