Write using Inequality or compound inequality (x+14)(x-5)(x+2)>0
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Write using Inequality or compound inequality (x+14)(x-5)(x+2)>0

[From: ] [author: ] [Date: 11-10-18] [Hit: ]
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X<-14 & -2
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Cubic function f(x) = (x+14)(x−5)(x+2) has roots at x = −14, −2, 5
Since leading coefficient > 0, f(x) starts off < 0 and ends > 0
f(x) < 0 for x < −14
f(x) > 0 for −14 < x < −2
f(x) < 0 for −2 < x < 5
f(x) > 0 for x > 5

f(x) = (x+14)(x−5)(x+2) > 0
−14 < x < −2 or x > 5

Ματπmφm
1
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