What is a expansion formulae to find the value of (63)^2
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63=60+3
63^2=(60+3)^2
according to (a+b)^2
(60)^2+(3)^2+2×60×3
3600+9+360
3969.
63^2=(60+3)^2
according to (a+b)^2
(60)^2+(3)^2+2×60×3
3600+9+360
3969.
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