b 3 = (a b)(a 2
ab + b 2) (Sum and Difference of Cubes)| Dave's Math Tables: Polynomial Identities |
(a+b) 2 = a 2 + 2ab + b 2
(a+b)(c+d) = ac + ad + bc + bd
a 2 - b 2 = (a+b)(a-b) (Difference of squares)
a 3 b 3 = (a b)(a 2 ab + b 2) (Sum and Difference of Cubes)
x 2 + (a+b)x + ab = (x + a)(x + b)
if ax 2 + bx + c = 0 then x = ( -b 
(b 2 - 4ac) ) / 2a (Quadratic Formula)
