The cost for fudge at Candy Lane is represented by the table. The graph shows the cost of a similar fudge that Best Fudge Shop sells. Which is the difference in cost when purchasing 5 pounds of fudge at each store?

Need more info like the table to answer this buddy : ).

The given  0 = x + 2 + x2 can and should be re-written as  0 = 1x^2 + 1x   + 2.   thus, a=1, b=1 and c=2.   the discriminant is b^2-4ac, or 1^2-4(1)(2), or1-8=-7.because the discriminant is negative we have two complex roots.

Add 16 is the correct answer because this means that x would be alone, thus giving you an answer of x = -67