Question

raiz 2x − 5 = 3 equacao irracional gente ajuda ai por favori

Answer 1

$\boxed{\begin{array}{l}\sf\sqrt{2x-5}=3\\\sf(\sqrt{2x-5})^2=3^2\\\sf 2x-5=9\\\sf 2x=9+5\\\sf 2x=14\\\sf x=\dfrac{14}{2}\\\sf x=7\\\underline{\rm verificac_{\!\!,}\tilde ao}\\\sf \sqrt{2\cdot7-5}=\sqrt{14-5}=\sqrt{9}=3\\\sf 7~\acute e~ra\acute iz\\\sf S=\{7\}\end{array}}$