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Find interval of values of ' a ' for whi...

Find interval of values of `' a '` for which one root of equation `x^2+a^2(x+1)+(a-2)=0` is negative and the other root is positive

A

`(-5,-4)`

B

`(-oo,-2)`

C

`(-oo,2)`

D

`(-2,1)`

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The correct Answer is:
D
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