Question

Equação 2° Grau

-x² + 6x - 5 = 0

Answer 1

$x^{2} +6X-5=0= \Delta= b^{2} -4.a.c= \Delta= 6^{2} -4.1.(-5)= \Delta=36+20=56 x^{1} =-+6 \sqrt{56}/2=-3 \sqrt{56}  x^{2} =-+6 \sqrt{56}/2=+3 \sqrt{56}$