Question

Care este descompunerea in factori a expresiei xy + 2x - 5y - 10 ?

Answer 1

$xy+2x-5y-10=x(y+2)-5(y+2)=(x-5)(y+2)$

Answer 2

xy +2x -5y -10 = 
= x(y+2) -5(y+2) = 
=(y+2)(x-5)