Question

3 x ao quadrado menos 3 igual a zero

Answer 1

3x2-3=0
3x2=3
x2=3/3
x2=1
x=√1
x=1

Answer 2

3x² - 3 = 0
3x² = 3
x² = 3/3
x² = 1
x = +-√1
x = + 1 e - 1