(adsbygoogle = window.adsbygoogle || []).push({}); Trivial but heavy doubt in Potential!!

I am having a trivial but heavy confusion with negative confusion of negative sign in the calculation of the potential.When we bring the charge from infinity to radial distance r,the electrical field and displacement are in opposite direction but we just multiply them without taking direction into consideration.Why and How??

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# Trivial but heavy doubt in Potential

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