Mathmatics Formula
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Factorials
- (a+b)2=a2+2ab+b2
- (a-b)2=a2-2ab+b2
- a2-b2=(a+b) (a-b)
- (a+x) (b+x)=x2+(a+b)x+ab
- (a+b)3=a3+3ab2+3ab2+b3
- (a-b)3=a3-3ab2+3ab2-b3
- a3+b3=(a+b)(a2-ab+b2)
- a3-b3=(a-b)(a2+ab+b2)
- a2n-b2n=(an-bn) (ann)