Question

x^2= 14^2 - cinco raiz de 3 ^2

Answer 1

Suponho que a equação seja:

$x^2=14^2-(5\sqrt{3})^2\\x^2=144-25\times3\\x^2=144-75\\x^2=69\\x=\pm\sqrt{69} \\x'=\sqrt{69} \; \; \;x''=-\sqrt{69}$