- I agree with the student.
- Justification:
- [tex] {5x}^{2} = 20 \\ = > {x}^{2} = \frac{20}{5} \\ = > {x}^{2} = 4 \\ = > x = \sqrt{4} \\ = > x = 2[/tex]
- Therefore, x must be equal to 2.
- So his statement is right.
Hope you could get an idea from it.
Doubt clarification - use comment section.
