VIAS Encyclopedia provides a collection of tables and definitions commonly needed in science and engineering.

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See also: Powers, Logarithms 
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Polynomials

Often needed binomial formulas:

(a+b)2 = a2 + 2ab + b2
(a-b)2 = a2 - 2ab + b2
(a+b)(c+d) = ac + ad + bc + bd
a2 - b2 = (a+b)(a-b)
a3 ± b 3 = (a±b)(a2 ± ab + b2)
(a+b)3 = a3 + 3a2b + 3ab2 + b3
(a-b)3 = a3 - 3a2b + 3ab2 - b3

General binomic equation:

Solution of the quadratic equation ax2 + bx + c = 0:

Home Mathematics Equations Polynomials

Last Update: 2004-12-14