Question

Exercitiul 2 ! Scoate factorul comun :

Answer 1

a) = 2 ( a+b+c)

b) = 5(x + y - z)

c) = 7(a + b +7) 

d) = 3(x - y + 1) 

Answer 2

2.
a)2·a+2·b+2·c=2(a+b+c)

b)5·x+5·y-5·z=5(x+y-z)

c)7·a+7·b+49=7·a+7·b+7·7=7(a+b+7)

d)3·x-3·y+3=3·x-3·y+3·1=3(x-y+1)