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x2  + 13= 852

 

Please can someone give me the answer?

 Mar 9, 2021
 #1
avatar+31195 
+1

x^2 = 85^2 - 13 ^2

x ^2 = 7225 - 169

x2 = 7056

x = +- sqrt 7056 = +- 84        you probably want the + 84 answer

 Mar 9, 2021
 #2
avatar+117 
0

\(x^2+13^2=85^2\quad :\quad x=84,\:x=-84\)

.
 Mar 10, 2021

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