Пошаговое объяснение:
- 3 3/4×3 3/4-3 3/4×1/4=
=3 3/4(-3 3/4-1/4)= 3 3/4×(-3 4/4)=
= - 3 3/4×4= - 15/4×4/1= - 15
-15.
-3 3/4×3 3/4-3 3/4×1/4 = - 3 3/4 • (3 3/4 + 1/4) = - 3 3/4 • 4 = - (3•4 + 3/4•4) = - (12 + 3) = - 15.
Пошаговое объяснение:
- 3 3/4×3 3/4-3 3/4×1/4=
=3 3/4(-3 3/4-1/4)= 3 3/4×(-3 4/4)=
= - 3 3/4×4= - 15/4×4/1= - 15
-15.
Пошаговое объяснение:
-3 3/4×3 3/4-3 3/4×1/4 = - 3 3/4 • (3 3/4 + 1/4) = - 3 3/4 • 4 = - (3•4 + 3/4•4) = - (12 + 3) = - 15.