(4p + 5t) (4p - 5t) (16p2 + 25t2)countinued product
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Step-by-step explanation:
(4p+5t)(4p−5t)(16p2+25t2)
=((4p+5t)(4p−5t))(16p2+25t2)
=((4p+5t)(4p−5t))(16p2)+((4p+5t)(4p−5t))(25t2)
=256p4−400p2t2+400p2t2−625t4
=256p4−625t4
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