Question

cálculo??????????????????

Answer 1

|x. 2. 1| x. 2
|3 -1 x| 3. -1
|0. 2. 1| 0. 2
-x+0+6-0-2x^2-6
-2x^2-x=0
delta=b^2-4ac
delta=(-1)^2-4.(-2).0
delta=1+0
delta=1
x=-b-/+ raiz de delta/2a
x=-(-1)-1/2 (-2)
x=1-1/-4
x=0/-4
x=0
x=-(-1)+1/2.(-2)
x=1+1/-4
x=2/-4
x=-0,5
S={-0,5, 0}