Question

× la a doua =36 =0


va rog
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Answer 1

$\it x^2=36 \Rightarrow \sqrt{x^2}=\sqrt{36} \Rightarrow |x|=6 \Rightarrow x=\pm6 \Rightarrow \begin{cases}\it x_1=-6\\ \\ \it x_2\ =\ 6\end{cases}$