Question 408892
3 = 2x^2 + 8x
3 = 2(x^2 + 4x)
3+8 = 2(x^2 + 4x + 4)
11 = 2(x+2)^2
11/2 = (x+2)^2
sqrt(11/2) = x+2
sqrt(11/2) - 2 = x
.345 = x