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clarkjets Group TitleBest ResponseYou've already chosen the best response.0
dw:1358409590944:dw
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
\[\log_3(x+4)+\log_3(x2)=3\]log a + log b = log (ab) \[\log_3(x+4)(x2)=3\] (x+4)(x2) = 3^3
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
so would it be x^2+2x17=0 which makes the roots x = {3.243, 5.243}?
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
Not quite, can you check again?
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
I'm sorry I can't seem to find where im going wrong
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
The equation you got was wrong..
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
(x+4)(x2) = 3^3 x^2 + 2x  8  3^3 =0 ^Simplify this
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
is it not x^2+2x17 ?
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
what is 3^3?
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
oh my apologies I was thing of multiplying, so it is x^2+2x+19?
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
Hmmm... x^2 + 2x  8  3^3 =0
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
x^2+2x35=0 ?
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
Yup :) Now, solve it~
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
x=5 and x=7 ?
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
Yes, but you have to reject one answer there.
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
You cannot take log for a negative number.
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
7 correct?
 one year ago

clarkjets Group TitleBest ResponseYou've already chosen the best response.0
ok thank you so much
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
You're welcome :)
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
And yes, you need to reject 7 :)
 one year ago
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