Question

Necesito resolver 2x^2-72=0

Answer 1

2x^2-72=0
2x^2=72
x^2=72/2
x^2=36
x= mas o menos (raiz de) 36
x=6   x=-6

Answer 2

2x²-72 = 0
2x² = 72
x² = 72/2
x² = 36
x = +-√36
x₁ = 6
x₂ = -6

Saludos..........