Question 173145
I'm not sure I understand what they are asking us to do for this problem. Evaluate the discriminant b^2 - 4ac. Then use the answer to state how many real-number solutions exist for the equation. 
y = x^2 + 8x + 16
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d = b^2 - 4ac
d = 64 - 4*1*16
d = 0
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The onsite solver explains it well.
*[invoke solve_quadratic_equation 1,8,16]