Recognize as difference of squares: Recognize the expression as a difference of two squares.The expression a6−64v6 can be written as (a3)2−(8v3)2, which is a difference of two squares since (a3)2 is the square of a3 and (8v3)2 is the square of 8v3.
Apply squares formula: Apply the difference of squares formula.The difference of squares formula is a2−b2=(a+b)(a−b). Here, a=a3 and b=8v3. So, we can factor the expression as follows:(a3+8v3)(a3−8v3)
Recognize as cubes: Recognize that both factors are differences and sums of cubes.Both a3+8v3 and a3−8v3 can be further factored because they are sums and differences of cubes, respectively. The sum of cubes formula is a3+b3=(a+b)(a2−ab+b2), and the difference of cubes formula is a3−b3=(a−b)(a2+ab+b2).
Apply sum of cubes formula: Apply the sum of cubes formula to the first factor.Using the sum of cubes formula on a3+8v3, we get:a3+8v3=a3+(2v)3=(a+2v)(a2−a(2v)+(2v)2)Simplifying, we get:(a+2v)(a2−2av+4v2)
Apply difference of cubes formula: Apply the difference of cubes formula to the second factor.Using the difference of cubes formula on a3−8v3, we get:a3−8v3=a3−(2v)3=(a−2v)(a2+a(2v)+(2v)2)Simplifying, we get:(a−2v)(a2+2av+4v2)
Combine factored forms: Combine the factored forms of both factors.Now we combine the factored forms from Step 4 and Step 5 to get the completely factored form of the original expression:(a+2v)(a2−2av+4v2)(a−2v)(a2+2av+4v2)
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