Question

Dau coroana
Va rog urgent
Sa se afle x din : x la puterea2+6 la puterea2=10la puterea2

Answer 1

$\it x^2+6^2=10^2 \Rightarrow x^2+36=100|_{-36} \Rightarrow x^2=64 \Rightarrow \sqrt{x^2}=\sqrt{100}\Rightarrow \\ \\ |x|=8\Rightarrow x=\pm8$