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40+3x{36:9+3x[50+3x(400:8-98:2)]}

Răspuns :

40+3x{4+3x[53x(50-49)]}
40+3x{7x[53x1)]}
40+3x{7x53}
40+3x371
40+1113
1153
40+3×{4+3×[50+3×(50-49)]}
=40+3×{4+3×[50+3×1]}
=40+3×{4+3×53}
=40+3×{4+159}
=40+3×163
=40+489
=529