Quantitative Comparison - Doubts

Can anyone tell me why the answer is D?

Can anyone tell me why the answer is D?

Quantitative Comparison - Doubts

Can anyone tell me why the answer is D?

Can anyone tell me why the answer is D?

For Q14, if you substitute 1 and 0 for x, you can clearly see that Qa is zero for both, but Qb changes. For one option, Qa=Qb, for another Qb>Qa. So option D

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