Răspuns :
(7^2-3^2):2^2+7^2-1^2.020=
(49-9):2^2+7^2-1^2.020=
40:2^2+7^2-1^2.020=
40:4+49-1= (1*1*1*1...1*=1)
10+49-1=
59-1=
58
(49-9):2^2+7^2-1^2.020=
40:2^2+7^2-1^2.020=
40:4+49-1= (1*1*1*1...1*=1)
10+49-1=
59-1=
58