(a-b)²=a²-2ab+b² Proof | A-B Whole Square Proof

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In this this video we are going to show the proof of another fundamental property of algebra.

It states that (a-b)²=a²+b²-2ab.

Many people are tempted to say that (a-b)²=a²-b² but that is not the case as we will learn in this video.

Enjoy...

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What is the value of A if (a-b)²=96²
Can you pls solve this expression as fast as you can plz

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