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(a+b)(a-b)= a^2-b^2
Sum and Difference
(a+b)^2= a^2+2ab+b^2
Adding Square of a Binomial
(a-b)^2= a^2-2ab+b^2
Subtracting Square of a Binomial
(a+b)^3= a^3+3a^2b+3ab^2+b^3
Adding Cube of a Binomial
(a-b)^3=a^3-3a^2b+3ab^2-b^3
Subtracting Cube of a Binomial
a^3+b^3=(a+b)(a^2-ab+b^2)
Sum of Two Cubes
a^3-b^3=(a-b)(a^2+ab+b^2)
Difference of Two Cubes