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------------------------------------------------ Simplify: [tex]5x^2(5x^2 - 3x - 1)[/tex]

A. [tex]25x^4 - 15x^3 - 5x^2[/tex]
B. [tex]25 - 15x - 5x^2[/tex]
C. [tex]10x^4 - 15x^3 - 5x^2[/tex]
D. [tex]25x^2 - 15x - 5[/tex]