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a. 37^2 + 74 +1
37^2+2.37+1 = (37+1)^2 = 38^2=1444
b. 58^2+232+4
58^2+4.58+4 = (58+2)^2 = 60^2=3600
c. 27^2 - 100 + 4
27^2 - 3.27 -10 - 5 = (27-5)(27+2)-5=(22*29)-5=638-5=633