37,62
Объяснение:
(d-9)(d+3)-(d+5)(d-13) = d²+3d-9d-27-(d²-13d+5d-65)=d²-6d-27-(d²-8d-52)=d²-6d-27-d²+8d+52=2d+38=-0,38+38=37,62
37,62
Объяснение:
(d-9)(d+3)-(d+5)(d-13) = d²+3d-9d-27-(d²-13d+5d-65)=d²-6d-27-(d²-8d-52)=d²-6d-27-d²+8d+52=2d+38=-0,38+38=37,62