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OpenStudy (anonymous):
Find the product and simplify the result.
(8a − 4b)2
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OpenStudy (saifoo.khan):
\[(8a-4b)^2\]
\[64 a^2-64 a b+16 b^2\]
OpenStudy (anonymous):
Actually its raised to the second power
OpenStudy (anonymous):
\[ 64 a^2-64 a b+16 b^2 \]
OpenStudy (anonymous):
48
OpenStudy (saifoo.khan):
from where in this world u get 48?
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OpenStudy (anonymous):
lolz :D
OpenStudy (anonymous):
8 ^2 is 64 - 4^2 is 16 = 48
OpenStudy (anonymous):
Use this general formula,
\[(a - b)^{2}= a^{2} - 2ab + b^{2}\]
It should guve you the answers.
OpenStudy (saifoo.khan):
there are variables man!!
wake up!!
OpenStudy (anonymous):
@Chicken :Nice approach!
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OpenStudy (anonymous):
I@chiken_little:I am sure that there is no "could be" ;)
OpenStudy (saifoo.khan):
what i wrote.
OpenStudy (anonymous):
yes he is ...
OpenStudy (saifoo.khan):
Yes im.
OpenStudy (anonymous):
the asnwer is 64a^2-64ab+16b^2
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OpenStudy (anonymous):
why 64^2 twice then wouldnt that apply to 16^2
OpenStudy (saifoo.khan):
No! man.
there is a variable in between and that square is on top of a variable.
OpenStudy (anonymous):
I'm sorry you guys are all wrong,
(8a - 4b) ^2
= \[64a^{2} - 32ab + 16b^{2}\]
OpenStudy (anonymous):
beg a differ, my good chum
OpenStudy (saifoo.khan):
o_O
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