Breakdown of the parts:
[tex] \frac{2}{5} \times -\frac{1}{5} = -\frac{2}{25} [/tex]
[tex]a^2 \times a^1 = a^{2+1} = a^3[/tex]
[tex]x \times x^2 = x^{1 + 2} = x^3[/tex]
[tex]\dfrac{2}{5} a^{2}x \times -\dfrac{1}{5} x^{2}a = - \dfrac{2}{25} a^3x^3[/tex]
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Answer: C
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