Question

calcule o valor de "x"

Answer 1

$a=2x\ \ \ \ \ \ \ b=3\sqrt{3} \ \ \ \ \ \ \ c = x\\\\a^2=b^2+c^2\\\\(2x)^2=(3\sqrt{3})^2+(x)^2\\\\4x^2=27+x^2\\\\4x^2-x^2=27\\\\3x^2=27\\\\x^2=\frac{27}{3}\\\\x^2=9\\\\x=\sqrt{9}\\\\x=3$