Question

Find the factor of 9a-54
. 9a-54
. 3×3​

Answer 1

Given :

• Number = 9a - 54

To find :

• Factor of given number

Procedure :

• Firstly find prime factor of given number
• Find number which are common to both numbers
• Take common factor together

Solution :

The given number is 9a-54

• Factor of 9a = 3×3×a
• Factor of 54 = 2×3×3×3

Therefore , 9a-54 can be written as

=> (3×3×a) - (2×3×3×3)

Take (3×3) as common ,

=> (3×3)a - (3×3)×(2×3)

=> (3×3) { a - (2×3) }

=> 9 ( a - 6)

ANSWER : 9(a-6)

Answer 2

$= 9a - 54 \: \: \: \ \ \\ = 9a - 9 \times 6 \\ = 9(a - 6) \: \: \: \: \:$

Hope this will help you