Question

Equação do 2

 

$<var>5x^{2}</var>$-11x+2=0 ?

Answer 1

$5 x^{2} -11x+2 = 0 \\ \Delta = 121-40 = 81 \\ x_1 = \frac{11+ \sqrt{\Delta} }{10} = 2 \\ x_2 = \frac{11- \sqrt{\Delta} }{10} = 0.2$