Respuesta :

Answer:

[tex]25x^{3}-15x^{2} -38x-8[/tex]

Step-by-step explanation:

Multiply the equations together

(5x+4)(5x^2-7x-2)

25x^3-35x^2-10x+20x^2-28x-8

Add like terms

25x^3-15x^2-38x-8

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