Question

Resolva
$2x ^2- 50 = 0$

Answer 1

2x² - 50 = 0
2x² = 50
x² = 50/2
x² = 25
x = ±√25
x = ±5

Answer 2

2x²-50=0
2x²=50
x²=50/2
x²=25
x=√25
x=5