Question 455045
2^x +2x=14
{{{x^2 + x = 7}}}
b/(2a) = 1/2
c = (1/2)^2 = 1/4
Add 1/4 to both sides
{{{x^2 + x + 1/4 = 29/4}}}
{{{(x + 1/2)^2 = 29/4}}}
{{{x + 1/2 = sqrt(29)/2}}}
{{{x = -1/2 + sqrt(29)/2}}}
{{{x = -1/2 - sqrt(29)/2}}}