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If f(x)=x^3+3x^2+3x+1, find f^{-1}(2).

 Jul 22, 2022

Best Answer 

 #2
avatar+197 
+1

There is a way to find the exact value! :D

 

x^3 + 3x^2 + 3x + 1 = 2

(x+1)^3 = 2

x = \(\sqrt[3]{2}-1\)

 Jul 22, 2022
 #1
avatar+117758 
+1

 

\(x^3+3x^2+3x+1=2\\ x^3+3x^2+3x-1=0\\ x\approx 0.26 \)

 

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 Jul 22, 2022
 #2
avatar+197 
+1
Best Answer

There is a way to find the exact value! :D

 

x^3 + 3x^2 + 3x + 1 = 2

(x+1)^3 = 2

x = \(\sqrt[3]{2}-1\)

Voldemort Jul 22, 2022
 #3
avatar+117758 
0

Thanks Voldemort

Melody  Jul 22, 2022

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