Answer
x= .463 or -.863
Work Step by Step
5$x^{2}$+2x-2=0
x= -b or + or - $\sqrt b^{2}-4ac$
a=5 b=2 c=-2
-2 + or - $\sqrt -2^{2}-4(5)(-2)$/2(5)
-2+ or - $\sqrt 4+40$/10
-2+ or - 6.63/10
x= -2+6.63/10
x=4.83$\div10$= .483
x=-2-6.63 over 10
x= -8.63$\div10$= .863
x=.463 or -.863
