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Question

Let S be the set of values of 'a' for which 2 lie between the roots of quadratic equation x2+(a+2)x(a+3)=0. Then S is given by

A
(-∞, -5)
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B
(5, ∞)
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C
(-∞, -5]
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D
[5, ∞)
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Solution

The correct option is A (-∞, -5)
Solution : x2+(a+2)x(a+3)=0
f(2)<0
4+2(a+2)(a+3)<0
a+5<0
a<5
a(,5)

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