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x=3355
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x≔3355
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x=5\times 441+50\times 21+100
Calculate 21 to the power of 2 and get 441.
x=2205+50\times 21+100
Multiply 5 and 441 to get 2205.
x=2205+1050+100
Multiply 50 and 21 to get 1050.
x=3255+100
Add 2205 and 1050 to get 3255.
x=3355
Add 3255 and 100 to get 3355.
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