$$(2x-1)(4 { x }^{ 2 } -1)( { x }^{ 2 } -3x+2))=$$
$\left(x-2\right)\left(x-1\right)\left(2x+1\right)\left(2x-1\right)^{2}$
$$\left(8x^{3}-2x-4x^{2}+1\right)\left(x^{2}-3x+2\right)$$
$$8x^{5}-28x^{4}+26x^{3}-x^{2}-7x+2$$
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$8x^{5}-28x^{4}+26x^{3}-x^{2}-7x+2$