Zero, Even Low ?
Algebra
Level
1
For what values of x, the expression is less than zero ?
1 < x < 3
-1 < x < 3
-3 < x < -1
-3 < x < 1
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1 solution
x ²+4 x +3<0
( x + 3)( x + 1)<0
The only values of x that satisfy this inequality must be located in this range (-3,-1), so
-3 < x < -1