Question

determine o valor de x`=-b-√∆\2a

Answer 1

x²-x-6  (a=1/b=-1/c=-6)
∆= - b² - 4.a.c

∆= - (-1)²-4.1.(-6)
∆=1+24 = 25


X=-b-√∆\2a
X=1 - √25 \2
X=1-5\2
X=4/2
X=2

:)