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need_help!
 3 years ago
Solve (4x^23)^2=64
need_help!
 3 years ago
Solve (4x^23)^2=64

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Retract
 3 years ago
Best ResponseYou've already chosen the best response.0The square root and 2th power exclude each other as they are both doing the opposite. You therefore get: \[4x^2  3 = 64\]

shaun786
 3 years ago
Best ResponseYou've already chosen the best response.04x^2 = 67 x^2 = 67/4 x = 67/4 , 67/4

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0But 64 does not become 8?

Kreshnik
 3 years ago
Best ResponseYou've already chosen the best response.0shaun has it right untill he gets rid of power it should be: \[\LARGE x^2=\frac{67}{4}\] then... \[\LARGE x=\pm \sqrt{\frac{67}{4}}\] but first of all... just want to ask you. is this the given: \[\LARGE \sqrt{(4x^23)^2}=64 \]

shaun786
 3 years ago
Best ResponseYou've already chosen the best response.0oh yeah forgot abt the squarerott. Thanks kreshnik

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0Yes! That's the given.

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0Actually I don't know whether the square root is for everything or only for (4x^23)^2

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0But it does matter, right?

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0I mean if it was for everything then 64 will become 8?

lalaly
 3 years ago
Best ResponseYou've already chosen the best response.0What do u mean for everything?

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0for the whole equation

lalaly
 3 years ago
Best ResponseYou've already chosen the best response.0the whole sqrt is squared? \[(\sqrt{4x^23})^2=64\]

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0Okay, sorry. I'm a bit confused. I just realised the question does not even have a square root, lol. Sorry!

lalaly
 3 years ago
Best ResponseYou've already chosen the best response.0haha so what is the question?

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0I have just edited the question.

eliassaab
 3 years ago
Best ResponseYou've already chosen the best response.2\[ (4x^23)^2=64 \\ (4x^23)=8 \\ 4 x^2 = 11\\ x^2 = \frac {11}4\\ x=\pm \sqrt{\frac {11}4}\\ x =\pm \frac {\sqrt {11}} 2 \]

need_help!
 3 years ago
Best ResponseYou've already chosen the best response.0Thank you so much =)
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