Question 11
Evaluate $12^2+35^2+53^2+24\times35+70\times53+106\times12$.
Original printed choices: A: 7200; B: 7220; C: 7244; D: 6400.
Editorial response format: give the exact answer; the original choices are retained for reference.
Original printed choices: A: 7200; B: 7220; C: 7244; D: 6400.
Editorial response format: give the exact answer; the original choices are retained for reference.