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Factor 
125n^(3)-8m^(3) completely.
Answer:

Factor 125n38m3 125 n^{3}-8 m^{3} completely.\newlineAnswer:

Full solution

Q. Factor 125n38m3 125 n^{3}-8 m^{3} completely.\newlineAnswer:
  1. Recognize as difference of cubes: Recognize the expression as a difference of cubes. 125n38m3125n^3 - 8m^3 can be written as (5n)3(2m)3(5n)^3 - (2m)^3, since 125=53125 = 5^3 and 8=238 = 2^3.
  2. Apply formula: Apply the difference of cubes formula.\newlineThe difference of cubes formula is a3b3=(ab)(a2+ab+b2)a^3 - b^3 = (a - b)(a^2 + ab + b^2). Here, a=5na = 5n and b=2mb = 2m.
  3. Substitute into formula: Substitute aa and bb into the formula.\newlineUsing the formula from Step 22, we get:\newline(5n2m)((5n)2+(5n)(2m)+(2m)2)(5n - 2m)((5n)^2 + (5n)(2m) + (2m)^2)
  4. Expand terms: Expand the terms inside the parentheses.\newlineNow we calculate each term:\newline(5n)2=25n2(5n)^2 = 25n^2\newline(5n)(2m)=10nm(5n)(2m) = 10nm\newline(2m)2=4m2(2m)^2 = 4m^2\newlineSo the factorization becomes:\newline(5n2m)(25n2+10nm+4m2)(5n - 2m)(25n^2 + 10nm + 4m^2)
  5. Write final factorized form: Write the final factorized form.\newlineThe completely factorized form of 125n38m3125n^3 - 8m^3 is:\newline(5n2m)(25n2+10nm+4m2)(5n - 2m)(25n^2 + 10nm + 4m^2)

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