Question

7y+7x
9a-9b
4c-4d
4c-4d
7•43+7•57
311•9-211•9
5•99+5
6v+6
8+8n
8a+2b
6+30xy
4a+4b+12
12a-8
15-10b
35a-14
32b-20
5+10+15....+90
24+9x-18y

cu factor comun

Answer 1

7×( y+x)
9× (a-b)
4×(c-d)
7×(43+57)
9×(311-211)
5× (99 +1)
6+1 v = 7v
8+1n = 9 n
2×4a + 2×b = 2×(4a +b)
6+30 xy = 6 × ( 6xy )
12a -8 = 4 × (3a -2)
15-10b = 5× (3-2b)
35 a -14 = 7× (5a -2 )
32 b-20 = 4× ( 8b -5)
24 +9x -18 y = 3×( 8+3x- 6y)