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anonymous
 one year ago
im lost in how to do this
anonymous
 one year ago
im lost in how to do this

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Wow i dont know how to do that sorry lol :O

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i just am really lost

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i wish i would help you .sorry

Hero
 one year ago
Best ResponseYou've already chosen the best response.0First write \(f(x) = x^2  81\) Then let \(y = f(x)\): \(y = x^2  81\) Next, swap \(x\) and \(y\) \(x = y^2  81\) Afterwards, isolate \(y\). @Player_2 Would you like to try isolating y?

phi
 one year ago
Best ResponseYou've already chosen the best response.1x=y^2  81 I would first add +81 to both sides , as the next step. what do you get?

phi
 one year ago
Best ResponseYou've already chosen the best response.1like this x+81 = y^2  81+81

phi
 one year ago
Best ResponseYou've already chosen the best response.1on the right side you have 81+81 and that simplifies to 0 and y^2 +0 is y^2 so you now have x+81= y^2 or y^2 = x+81 now you can "take the square root" of both sides

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im a bit confused what to do 81x

phi
 one year ago
Best ResponseYou've already chosen the best response.1there is no 81x what do you mean ?
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