**Helpful Links**Mark Scheme**

**Working**

*a*and

*b*are odd numbers.

a) Give an example to show that the value of 2(

*a*+

*b*) is a multiple of 4

b) Show that, when

*a*and

*b*are both odd numbers, the value of 2(

*a*+

*b*) will always be a multiple of 4

**Question**

14)

a) Give an example to show that the value of 2(

*a*and*b*are odd numbers.a) Give an example to show that the value of 2(

*a*+*b*) is a multiple of 4**[2 marks]**

b) Show that, when

*a*and

*b*are both odd numbers, the value of 2(

*a*+

*b*) will always be a multiple of 4

**[2 marks]**