1) 4х(4-х)
2) 7ab(4-ab)
3) c^2(5x+2d)
4) (x+y)(4a-3)
1. 16x-4x^2=4x(4-x)
2. 28ab-7ab^2= 7ab(4-b)
3. 5c^2x+c^2x= c^2(5-1)
4. 4a(x+y)-3(x+y)= (x+y)(4a-3)
1) 4х(4-х)
2) 7ab(4-ab)
3) c^2(5x+2d)
4) (x+y)(4a-3)
1. 16x-4x^2=4x(4-x)
2. 28ab-7ab^2= 7ab(4-b)
3. 5c^2x+c^2x= c^2(5-1)
4. 4a(x+y)-3(x+y)= (x+y)(4a-3)