(-4,0)
(-1/2,0)
(7,0)
Explanation:
Set each factor equal to zero and solve for x.
(2x+1)(x-7)4(x+4) = 0
2x+1 = 0 or x-7 = 0 or x+4 = 0
2x = -1 or x = 7 or x = -4
x = -1/2, or x = 7 or x = -4
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