What is the HCF of 45 and 60

(a)  

What is the HCF of 25 + 10b

(a)  

What is the HCF of $$f^2-5f$$  

(a)  

What is the HCF of $$2g+16g^2$$  

(a)  

Factorise the following expression:   6m² + 16m

(a)  

Factorise the following expression: 4x + 14

(a)  

Factorise the following expression: 3a - 9

(a)  

Factorise the following expression: 5x-10

(a)  

Factorise the following expression: 6x² - 3x

(a)