Question

помогите срочно пж! ​

Answer 1

Объяснение:

а)

(-2/3)³+2³/3-2/(-3)³=

= -8/27 + 8/3+2/27= -8/27+72/27+2/27=

=(-8+72+2)/27=66/27=22/9=2 4/9

б)

5²-(-3)²-(-1)⁰=25-9-1=15