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How do I solve an equation that looks like this? My wokrsheet says to find the real solution(s) of the equation and to round decimals. 

(x+7)^3=1000

Guest Feb 14, 2017
edited by Guest  Feb 14, 2017
edited by Guest  Feb 14, 2017
edited by Guest  Feb 14, 2017
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 #1
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(x+7)^3=1000    take the cube root of both sides

 

[(x +7)^3]^(1/3)  = 1000^(1/3)

 

x + 7  = 10     →   x  = 3

 

 

cool cool cool

CPhill  Feb 14, 2017
 #2
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Thanks CPhill! Was having a hard time, but I understand it now. 

Guest Feb 14, 2017
 #3
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Good deal ...!!!

 

 

cool cool cool

CPhill  Feb 14, 2017

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