Question

$$(2 { a }^{ 2 } +a-1)( { a }^{ 2 } -a+3)$$

Evaluate

$\left(2a-1\right)\left(a+1\right)\left(a^{2}-a+3\right)$

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Expand

$2a^{4}-a^{3}+4a^{2}+4a-3$

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