1. Find the value of the expression 16x4 + 25y2 + 40x?y, when x =
5 and y = 2
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Answer:
16*5*4+25*2*2+40*5=620
Answered by
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answer
16*4+25*2*2+40
64+25*4+200
89*4+200
356+200
556
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