solve the equation.

2x^2+5=41

2 x^2 + 5 - 41 = 0

I could not factor this so used the quadratic equation
x = [-5 +/- sqrt (25 - 4*2*-41)]/[2*2]
= [ -5 +/- sqrt 353 ] / 4
= [-5 +/- 18.8 ]/4