7x²=28 I'm not sure about how to do thus problem
\(7x^2=28\\ x^2=4\\ x=-2 \vee x=2\)
\(7x^{2} = 28\)\(x^{2} = \frac{28}{7}\)\(\frac{28}{7} = 4\)\(x^{2} = 4\)\(x = 2\) or \(x = -2\)______________________________________-Have a nice day
