Question

(a+b)2 = _____ + 2ab + b2

Answer 1

I think the answer is a2

Answer 2

There is a tremendous amount of application of the famous Binomial theorem. To remind everyone, it states this : (a+b)²=a²+2ab+b²

In a lot of maths formulas, you need to turn either side of the equation to another, to make calculus easier.

You might see what I am implying: the binomial theorem is useful for maths, not in your everyday life. And it is fine! Because advanced mathematics is useful, so by extension the binomial theorem is.

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