Question

Calculati: (37^15-37^14+37^13):(37^14-37^13+37^12)-56:2^3+13

Answer 1

(37^15-37^14+37^13):(37^14-37^13+37^12)-56:2^3+13=43

Answer 2

(37^15-37^14+37^13):(37^14-37^13+37^12)-56:2^3+13=
=(37^14+37^13):(37^13+37^12)-56:8+13=
=37^14:37^13-7+13=
=37-7+13=
=30+13=43