Question

2x^2=50

Answer 1

2x^2=50

=>x²=25

=>x=-5

Answer 2

\(2x^2=50\\ =>x^2=25\\ =>\left[{}\begin{matrix}x^2=5^2\\x^2=\left(-5\right)^2\end{matrix}\right.\\ =>\left[{}\begin{matrix}x=5\\x=-5\end{matrix}\right.\)

Answer 3

2x² = 50

x² = 50 : 2

x² = 25

=> x = 5