Question 694280
The equation can be factored as
(4x+5)(2x+1) = 0
The LHS will equal zero if either factor is zero:
4x+5 = 0 -> x = -5/4
2x+1 = 0 -> x = -1/2
The graph showing the two zeros is below:
{{{graph(300,300,-3,1,-5,5,8x^2+14x+5)}}}