Tool to factorize a math expression. Factorization of a mathematical expression consists in expressing it as a product, it is the inverse of an expansion.

Math Expression Factorization - dCode

Tag(s) : Symbolic Computation

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Factorizing is the action of transforming a sum into a product (a multiplication) of 2 factors (or more).

**Factorization by finding a common factor**

__Example:__ $ 2a + 2b $ has the common factor $ 2 $, so $ 2a + 2b = 2(a+b) $

**Factorization by identifying a remarkable identity**

The most common outstanding identities are $ (a+b)^2 = a^2 + 2ab + b^2 $, $ (a-b)^2 = a^2 - 2ab + b^2 $ or $ (a+b)(a-b)=a^2 - b^2 $

__Example:__ $ x^2 + 2x-a^2 + 1 $ is a remarkable identity of the form $ a^2 + 2ab + b^2 = (a+b)^2 $ so $ x^2 + 2x - a^2 + 1 = (-a+x+1)(a+x+1) $

dCode can factorize a mathematical expression in order to express it as a product of factors. dCode knows how to recognize a remarkable identity and manages unknowns and variables thanks to its formal calculator.

dCode factorizes trigonometric expression in order to simplify them by expressing them with sin and cos

__Example:__ $$ 1+1/\sec(x) = 2\cos(x/2)^2 $$

__Example:__ $$ \cos(x+y) + \sin(x)\sin(y) = \cos(x)\cos(y) $$

The solver/factorizer has no real steps, at least not steps similar to those required of college or high school. For the moment steps are not displayed, but the solver allows checking a result.

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Source : https://www.dcode.fr/math-expression-factor

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