100-x^2=18^2-(16-x^2)помогите решить

Question

100-x^2=18^2-(16-x^2)
помогите решить

Answer 1

100-x^2=18^2-(16-x^2)
100-x^2=18^2-16+x^2
-x^2-x^2=18^2-16-100
-2x^2=324-16-100
-2x^2=208
x^2=-104
x~10