Respuesta :

Multiply x by everything in the other parentheses. So x by -5x2 and -8 and 4, then do the same with 7.

The answer would be,

-5x^3-8x^2+4x-35x^2-56x+28

Simplified it would equal after combining like terms

-5x^3-43x^2-52x+28

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