(22)2Using this identity (a+b)2=a2+b2+b2
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(22)2=(20+2)2
(a+b)2=a2+b2+b2
(20+2)2=(20)2+(2)2+(2)2
=400+4+4
=408
If the two is power
IF NOT
(20+2)2=(20)2+(2)2+(2)2
=40+4+4
=48
If the 2 meant multiplication
(a+b)2=a2+b2+b2
(20+2)2=(20)2+(2)2+(2)2
=400+4+4
=408
If the two is power
IF NOT
(20+2)2=(20)2+(2)2+(2)2
=40+4+4
=48
If the 2 meant multiplication
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