03-08-2017
Mathematics

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how to solve Help?
(14+x)^2= 25^2 +x^2

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choixongdong choixongdong

03-08-2017

(14+x)^2= 25^2 +x^2
14^2 + 28x + x^2 = 25^2 +x^2
28x = 25^2 - 14^2
28x = 625 - 196
28x = 429
x = 15.32

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