Question

3×{8-2×[3+(11-2×5):1]}×{138574+[5432-37×(53-21)]}

Answer 1

3x{8-2x[3+(11-2x5):1]}x{138574+[5432-37x(53-21)]}=
=3x{8-2x[3+(11-10):1]}x[138574+(5432-37x32)]
=3x[8-2x(3+1:1)]x[138574+(5432-1184)]
=3x(8-2x4)x(138574+4284)
=3x(8-8)x134326
=3x0x134326
=0