Question

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

Answer 1

a) 2×a +2×b+2×c= 2(a+b+c)
b) 5×X+5×y-5=5(x+y-1)
c) 7×a+7×b+49=7(a+b+7)
d) 3×X-3×y+3=3(x-y+1)

Answer 2

a)2(a+b+c)
b)5(x+xy-1)
c)7(a+b+7)