Number System

Number System Formula

(a+b)^2 = a^2+b^2+2ab

(a-b)^2=a^2+b^2-2ab

(a^2-b^2)=(a+b)(a-b)

(a+b)^2-(a-b)^2=4ab

(a+b)^2+(a-b)^2=2(a^2+b^2)

(a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ca)

(a+b)^3=a^3+b^3+3ab(a+b)

(a-b)^3=a^3+b^3+3ab(a-b)

(a^3+b^3)=(a+b)(a^2+b^2-ab)

(a^3-b^3)=(a+b)(a^2+b^2+ab)

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