Question

(FUVEST-SP ADAPTADA). sobre a equação dois mais x menos 1 igual a (menos x ao quadrado menos um), é correto afirmar que :

Answer 1

$\large\boxed{\begin{array}{l}\sf (FUVEST-SP\,ADAPTADA)\\\sf Sobre\,a\,equac_{\!\!,}\tilde ao\,x-1=x^2-1\\\sf \acute e\,correto\,afirmar\,que:\\\underline{\sf soluc_{\!\!,}\tilde ao\!:}\\\rm x-1=x^2-1\\\rm x-x^2-\backslash\!\!\!1+\backslash\!\!\!1=0\\\rm x-x^2=0\\\rm x\cdot(1-x)=0\\\rm x=0\\\rm 1-x=0\\\rm x=1\\\rm S=\{0,1\}\end{array}}$