Question

descompunerea in factori a expresiei E(x)= 2x²+xy-2x-y este​

Answer 1

$E(x)= 2x²+xy-2x-y = \\ 2x(x - 1) + y(x - 1) = \\ (x - 1)(2x + y)$

Answer 2

Răspuns:

E(x)= 2x²+xy-2x-y

2x²+xy-2x-y= x(2x+y) - (2x+y)

=(2x+y)(x-1)