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youngmath
 3 years ago
solve without using calculator
5ln(x2)2=28
help please, thank you
youngmath
 3 years ago
solve without using calculator 5ln(x2)2=28 help please, thank you

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Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3\( 5ln(x2) = 30 \) \(ln(x2) = 6\) \(log_e(x2) = 6\) \((x2) = e^{6}\) Are you able to do it now?

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0im stuck at the (x2)=e^6

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3bring the \(2\) to the RHS

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0i know the answer is e^6 +2 but i dont know where the =2 comes from

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3Because when you bring the \(2\) to the RHS it's a positive

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3I don't know the correct way to say that lol

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0alright can you walk me through the part after ln(x2)=6

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3Well you know that \(ln\) can also be written as \(log_e\) right?

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0so you get e^6= (x2) right

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0so what do you do next

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3well i just told you before :)

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0bring the 2 to the RHS?

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0ooooohhhhhhhh xD duh x = e^6 + 2

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3yes; you dont really bring it was called something else which forgot. just simply drag it to RHS. But there is a better name for it lol

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0i forgot i was solving for x , silly me

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0i more last question what do you do for e^x3 = 16

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3\[ e^x  3 =16\] What have you tried?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3Um, that is not right..

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3drag the \(3) to the rhs

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0but its an exponent x3 is the exp. for e

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3Take ln both sides \[xlne = ln19\]

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0the answer is ln(16)+3

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3Wolfram Alpha agrees with me http://www.wolframalpha.com/input/?i=+e%5Ex3+%3D+16

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0my teacger myst be wring though . she gave me that answer

youngmath
 3 years ago
Best ResponseYou've already chosen the best response.0my teacher was wron. she gave me that answer

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.3well there is a low chance that wolfram alpha is wrong

m_charron2
 3 years ago
Best ResponseYou've already chosen the best response.0oh, well, it looks like we have a paranthesis confusion here. when writing e^x3 = 16, it's important that you write the parantheses aroudnthe (x3), else we can't know that the whole thing is the exponant. So we have this right? \[e ^{x3} = 16\]
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