Answer
$8x^4-28x^3+4x^2$
Work Step by Step
We start with the given expression: $4x(2x^3-7x^2+x)$
We apply the distributive property: $(4x)(2x^3)+(4x)(-7x^2)+(4x)(x)$
We multiply the coefficients and add the exponents: $8x^4-28x^3+4x^2$
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