Lời giải:
\(892^2+892.216+108^2=892^2+2.892.108+108^2\)
\(=(892+108)^2=1000^2=1000000\)
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\(10,2.9,8-9.8.0,2+10,2^2-10,2.0,2\)
\(=9,8(10,2-0,2)+10,2(10,2-0,2)\)
\(=9,8.10+10,2.10=10(9,8+10,2)=10.20=200\)
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\(36^2+26^2-52.36=36^2-2.36.26+26^2\)
\(=(36-26)^2=10^2=100\)