Write as a product

Question

Write as a product

45b+6a–3ab –90

Write as a product45b+6a–3ab –90

Answer 1

45b+6a–3ab –90

 

= 45b - 3ab + 6a - 90

 

= 3b(15-a) -6(-a + 15)

 

= 3b(15-a) - 6(15-a)

 

= (3b-6)(15-a)

 

= 3(b-2)(15-a)