Roots and Precal
posted by raven 31791 .
Find the roots of the function
f(x)= x^2 +2x+2
a)1 + sq root of 2 and 1  sq root of 2
b) 1 + i and 1  i
c)1 2i sq root of 2 and 12i sq root of 2
d)1 +2i and 12i
The i's are in italics but I can't .make them in italic here for some reason
completing the square:
x^2+2x +1= 2 +1
(x+1)^2=1
x+1= +i sqrt2
solve for x
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