Question

3x ao quadrado -x-5=0 determine a raiz

Answer 1

3x²-x-5=0

$\frac{-(-1)+- \sqrt{(-1)^2-4*3*(-5)} }{2*3} = \frac{1+- \sqrt{61} }{6}$

x1=$\frac{1+ \sqrt{61} }{6}$

x2=$\frac{1- \sqrt{61} }{6}$