Question

raiz de x² +2x - 8= 0 por formula de baskara

Answer 1

x^2+2x-8=0
delta=b^2-4.a.c
delta=2^2-4.1.(-8)
delta=4+32
delta=36
x=-b-/+ raiz de delta/2a
x=-2-6/2.1
x=-8/2
x=-4
x=-2+6/2.1
x=4/2
x=2