Correct Answer: Option B

Explanation

\(8a + 125ax^{3} = (2^{3})a + 5^{3} ax^{3}\)

= \(a(2^3 + 5^3 x^3)\)

∴\(a[2^3 + (5x)^3]\)

\(a^3 + b^3 = (a + b)(a^2 - ab + b^2)\)

∴ \(a(2^3 + (5x)^3)\)

= \(a(2 + 5x)(4 - 10x + 25x^2)\)

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