Mathematics
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OpenStudy (czarluc):
(2^x)3x+3x=1
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OpenStudy (solomonzelman):
\(\large\color{black}{ (2^x)3x+3x=1 }\) like this, right?
OpenStudy (czarluc):
yes
OpenStudy (anonymous):
2^x)3x+3x=1=3x(2^x+1)
OpenStudy (solomonzelman):
yes.
OpenStudy (anonymous):
is this one that may be useful?
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OpenStudy (solomonzelman):
\(\large\color{black}{ 3x(2^x+1)=1 }\) looks certainly better.
OpenStudy (czarluc):
How did that happen?
OpenStudy (czarluc):
nvm I got it
OpenStudy (anonymous):
yes. now we have to divide both sides by 3x, right?
OpenStudy (czarluc):
what happens next?
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OpenStudy (solomonzelman):
\(\large\color{black}{ 3x(2^x)+3x(1)=1 }\)
\(\large\color{black}{ 3x(2^x+1)=1 }\) like this.
OpenStudy (czarluc):
Then it would be like this? (2x+1)=1/3x
OpenStudy (anonymous):
do you know what to do next? I'm little confused in it
OpenStudy (anonymous):
that does not help your cause, matter of fact it makes it worse
OpenStudy (anonymous):
so what's your version of solvong this equation?
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OpenStudy (anonymous):
eyeball it
OpenStudy (czarluc):
huh?
OpenStudy (anonymous):
zero works by inspection
OpenStudy (anonymous):
what do you mean by eyeball it?
OpenStudy (anonymous):
@satellite73
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OpenStudy (anonymous):
maybe i misunderstood the question
OpenStudy (czarluc):
but 0 won't work since 3(0) would be zero too
OpenStudy (anonymous):
what if we try to factor this expression
3x*2^x+3x-1=0
OpenStudy (anonymous):
if this is the question
\[3x\times2^x+3x-1=0\] then i have no idea how to solve it
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OpenStudy (anonymous):
how about substitution. we will get at one answer and then will write it as (x-a)(....)=1
OpenStudy (anonymous):
I can try to find one
OpenStudy (czarluc):
So the answer is -1?
OpenStudy (solomonzelman):
it is not -1, that doesn't work.
OpenStudy (anonymous):
it doesn't look like answer -1, because 2^(-1)=0.5 and it will not result 1
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OpenStudy (czarluc):
0.1?
OpenStudy (anonymous):
I will get a graph for function f(x)=.....-1 and we will see if 0.1 maybe the zero of function
OpenStudy (czarluc):
if you look at the reply of solomon ^ it is there
OpenStudy (anonymous):
OpenStudy (anonymous):
looks like it might be 0.1
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OpenStudy (anonymous):
do you have mulptiple choice question?
OpenStudy (czarluc):
no, its only a blank question
OpenStudy (czarluc):
but nevertheless, it's ok now
OpenStudy (anonymous):
ok then. Check by substitution, sorry nobody could get a process in all only answer.