1) 319²-202²/(319+202)² 2) 125³-109³/125²-109² 3) (629-564)³/629³-564³ помогите плиз.

Question

1) 319²-202²/(319+202)²
2) 125³-109³/125²-109²
3) (629-564)³/629³-564³

помогите плиз.

Answer 1

1.)319-202=117
2.)319+202=521
3.)521:117=100(ост.5)