Recognize Difference of Squares: Step Title: Recognize the Difference of SquaresConcise Step Description: Identify that the expression is a difference of squares, which can be factored into the product of a sum and difference.Step Calculation: Recognize that 9x6 is a perfect square, as is 1, so the expression 9x6−1 can be written as (3x3)2−12.
Apply Squares Formula: Step Title: Apply the Difference of Squares FormulaConcise Step Description: Use the difference of squares formula a2−b2=(a+b)(a−b) to factor the expression.Step Calculation: Apply the formula with a=3x3 and b=1 to get (3x3+1)(3x3−1).
Factor Further if Possible: Step Title: Factor Further if PossibleConcise Step Description: Check if the resulting binomials can be factored further.Step Calculation: Notice that 3x3+1 cannot be factored further over the integers, but 3x3−1 is again a difference of squares, as it can be written as (33x)3−13.
Apply Cubes Formula: Step Title: Apply the Difference of Cubes FormulaConcise Step Description: Use the difference of cubes formula a3−b3=(a−b)(a2+ab+b2) to factor 3x3−1.Step Calculation: Apply the formula with a=33x and b=1 to get (33x−1)((33x)2+(33x)(1)+12).
Simplify Resulting Expression: Step Title: Simplify the Resulting ExpressionConcise Step Description: Simplify the expression obtained from the difference of cubes formula.Step Calculation: The simplified form is (33x−1)(3x2+33x+1).
Combine All Factors: Step Title: Combine All FactorsConcise Step Description: Combine all factors obtained from the previous steps to write the completely factored form of the original expression.Step Calculation: The completely factored form is (3x3+1)(33x−1)(3x2+33x+1).