Question

2x ao quadrado -450=0

Answer 1

2x² - 450 = 0
2x² = 450
x² = 450/2
x² = 225
x = √225
x = +/- 15

R.: x = 15 e x = - 15

Answer 2

2x² - 450 = 0
2x² = 450
x² = 225
x = √225
x = ±15