Answer
$4(x^2-2x+8)$
Work Step by Step
Factor out the GCF, which is $4$, to obtain:
$4x^2-8x+32=4(x^2-2x+8)$
The trinomial can no longer be factored further.
Hence, the completely factored form of the given expression is $4(x^2-2x+8)$.
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