Algebra-2

To factor the expression , we can recognize that it is a sum of cubes.

Step 1: Identify the terms

We can rewrite as:

 

Step 2: Apply the sum of cubes formula

The sum of cubes can be factored using the formula:

For our expression:

(a = 10x)

(b = 9)

 

Step 3: Substitute and calculate

Calculate (a + b):

a + b = 10x + 9

 

Calculate

 

Calculate (ab):

ab = (10x)(9) = 90x

 

Calculate

 

Combine to form

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