## Factorization

Factorization or factoring means writing a number or algebraic expression as a product of several factors, e.g.:

$$ax+bx=x(a+b)$$

To do the factorization, you need to find the greatest common factor, e.g.:

$$2x+6xy−8x^2=2x(1+3y−4x)$$

Also:

$$7x^2+7x+3x+3=7x(x+1)+3(x+1)=$$

$$=(7x+3)(x+1)$$