Question

scoate factor comun: a) 2×a+2×b+2×c ; b) 5×x+5×y+5×z ; c) 7×a+7×b+49 ; d) 3×x-3×y+3.

Answer 1

a) 2(a+b+c) 
b) 5(x+y+z)
c)7(a+b+7)
d)3(x-y+1)

Answer 2

A) 2(a+b+c)
B) 5(x+y+z)
D) 3(x-y+1)
C) 7(a+b+7)