Respostas

2014-06-09T16:27:14-03:00
Δ=-b^2-4.a.c
Δ=(-3)^2-4.1.(-10)
Δ=49

x=-b+-√Δ/2a
x=-(-3)+-√49/2.1
x=3+-7/2
x'=3+7/2 ⇒x'=10/2=5
x''=3-7/2⇒x''=-4/2=-2