anonymous
  • anonymous
Factorise (a+2)^2 - (a-3)^2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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jhonyy9
  • jhonyy9
us a^2 -b^2 =(a-b)(a+b)
anonymous
  • anonymous
So when I've converted it, it's already factorised?
jhonyy9
  • jhonyy9
converted how ?

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anonymous
  • 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?
anonymous
  • anonymous
By other side of the equal sign, I mean in the main formula
jhonyy9
  • jhonyy9
so at finaly how you have got it ?
jhonyy9
  • jhonyy9
so a here is a+2 and b is a-3
anonymous
  • anonymous
Yes, right?
jhonyy9
  • jhonyy9
than will be firstly (a+2-(a-3))(a+2+(a-3))
anonymous
  • anonymous
Yes, but is that the end of the equation? Will that mathematical sentence be considered as "factorised"?
jhonyy9
  • jhonyy9
yes if you continue it
jhonyy9
  • jhonyy9
make the calcules
anonymous
  • anonymous
So, if I continue the equation, I will end up with the answer?
jhonyy9
  • jhonyy9
i like to see it
anonymous
  • anonymous
Okay, I'll try now (a+2)^2 - (a-3)^2
anonymous
  • anonymous
=((a+2)+(a-3))((a+2)-(a-3))
anonymous
  • anonymous
=(2a-1)(-1)
anonymous
  • anonymous
am I right so far?
jhonyy9
  • jhonyy9
no continue it
anonymous
  • anonymous
Then, it will become -2a+1. Am I correct?
jhonyy9
  • jhonyy9
yes right
anonymous
  • anonymous
Okay, thanks
jhonyy9
  • jhonyy9
my pleasure you are welcome good luck bye
anonymous
  • anonymous
Ha, sure

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