Question

metoda factorului comun

Answer 1

a)2x+2y=2(x+y)
b)2a-2b+2c=2(a-b+c)
c)2xy+2ab-2=2(xy+ab-1)
d)2a+4=2(a+2)
e):

$- 2x {}^{2} + 4xy + 6y {}^{2} =- 2(x {}^{2} - 2xy - 3y {}^{2} )$