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(1*1)*5=5,
(2*2)*5=20,
(3*3)*5=45,
Consequently,
(4*4)*5=80.
Answer: 4+4=80
2 +2 =20 (2^2 *5) 3 +3 =45 (3^2 *5) 4 +4 =80 (4^2 *5) Ans.
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