Mathematics
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OpenStudy (markchernioglo):
I need help with this problem!
(2x+6)^3
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OpenStudy (markchernioglo):
I will probably know most of it but i still need help.
OpenStudy (markchernioglo):
baru do you know this one?
OpenStudy (baru):
you want to solve for x?
OpenStudy (markchernioglo):
no im just finding the product.
OpenStudy (baru):
oh ok
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OpenStudy (baru):
what do you think you should do?
OpenStudy (markchernioglo):
well probably write out 2x+6 3 times? idk what do you think?
OpenStudy (baru):
yes you can do that
OpenStudy (markchernioglo):
k, but then im kinda confused.
OpenStudy (baru):
do this first
(2x+6)(2x+6)
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OpenStudy (baru):
what do you get?
OpenStudy (markchernioglo):
k so do i multiply 2x and 2x?
OpenStudy (markchernioglo):
then 6 and 6?
OpenStudy (markchernioglo):
(4x+36)?
OpenStudy (baru):
no
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OpenStudy (markchernioglo):
lol see i suck, idk even when I try I fail.
OpenStudy (markchernioglo):
so what do I do?
OpenStudy (baru):
ok,
lets start with this
a(b+c)
OpenStudy (baru):
expand that
OpenStudy (markchernioglo):
umm well is 2 a, x b, and 6 c?
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OpenStudy (markchernioglo):
if so then that would mean 12x
OpenStudy (baru):
no, i'm just teaching you the method
a,b,c has nothing to do with your question
so find the product a(b+c)
OpenStudy (markchernioglo):
no it would actually mean 2(x+6)
OpenStudy (markchernioglo):
oh ok
OpenStudy (markchernioglo):
lol so a times b and the sum of c.
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OpenStudy (markchernioglo):
i dont know what am i supposed to say? :)
OpenStudy (markchernioglo):
lol sorry for looking so stupid.
OpenStudy (baru):
a(b+c)
=ab+ac
OpenStudy (baru):
you get how to do that?
OpenStudy (markchernioglo):
ok i see
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OpenStudy (markchernioglo):
yea
OpenStudy (baru):
so try
a(b+c+d)
OpenStudy (markchernioglo):
so ab+ac+ad
OpenStudy (baru):
exactly
OpenStudy (markchernioglo):
(2x+6)^3
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OpenStudy (markchernioglo):
and does that work with this problem?
OpenStudy (baru):
wait, we'll get there
OpenStudy (markchernioglo):
ok
OpenStudy (baru):
now i'll show you how to do
(a+b)(c+d)
OpenStudy (markchernioglo):
k
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OpenStudy (baru):
|dw:1447142957133:dw|
choose the leftmost number