Question

Qual a resolução do problema 7x^2+x+2=0 utilizando a fórmula de bhaskara

Answer 1

$7x^2+x+2=0 \\\\ a=7~;~b=1~;~c=2\\\\ \Delta=b^2-4ac\to\\ \Delta=1^2-4.7.2\to\\ \Delta=1-56\to\\ \boxed{\Delta=-55}\\\\\\ N\~ao~~existe~~raiz~~real,~~pois~~\Delta\ \textless \ 0.$