37х12,2+22,4²-14,6² решите пжж

Question

37х12,2+22,4²-14,6² решите пжж

Answer 1

37*12,2+22,4²-14,6²=
=37*12,2+(22,4+14,6)(22,4-14,6)=
=37*12,2+37*7,8=
=37(12,2+7,8)=
=37*20=740