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What are the solutions to the inequality (x-3)(x+5) <_ 0

User GolfBravo
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(x-3)(x-5)<_0

If any individual factor on the left side of the equation is equal to 00, the entire expression will be equal to 00.

x−3=0x-3=0

x+5=0x+5=0

Set the first factor equal to 00 and solve.

x=3x=3

Set the next factor equal to 00 and solve.

x=−5x=-5

Consolidate the solutions.

x=3,−5x=3,-5

Use each root to create test intervals.

x<−5x<-5

−5<x<3-5<x<3

x>3x>3

Choose a test value from each interval and plug this value into the original inequality to determine which intervals satisfy the inequality.

x<−5x<-5 False

−5<x<3-5<x<3 True

x>3x>3 False

The solution consists of all of the true intervals.

−5<x<3-5<x<3

The result can be shown in multiple forms.

Inequality Form:

−5<x<3-5<x<3

Interval Notation:

(−5,3)

User Andreas Hausladen
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