Using identity and factories: 16x^2y^2 -40 xyz+25 z^2.
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Step-by-step explanation:
16x^2y^2 -40 xyz+25 z^2.=( 4xy)^2 - 2 * 4xy* 5z +( 5z)^2
=(4xy - 5z)^2
=(4xy - 5z)(4xy - 5z)
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