Question

Equação do 2 grau x+7x-3=0

Answer 1

$\sf x^2+7x-3=0\\\sf\Delta=49+12=61\\\sf x=\dfrac{-7\pm\sqrt{61}}{2}\\\begin{cases}\sf x_1=\dfrac{-7+\sqrt{61}}{2}\\\sf x_2=\dfrac{-7-\sqrt{61}}{2}\end{cases}$