Question

(x+½)² preciso muito dessa

Answer 1

$\left( x + \dfrac{1}{2} \right)^2\to~~~~\left( x + \dfrac{1}{2} \right) \left( x + \dfrac{1}{2} \right)\to\\\\\\ x^2 + 2.x.\dfrac{1}{2} + \dfrac{1}{2}^2\to~~~~ x^2 + \dfrac{2x}{2}+ \dfrac{1}{4}\to\\\\\\ \large\boxed{~x^2+x+ \dfrac{1}{4} ~~~~ou~~~~x^2+x+0,25~}$