ГДЗ Алгебра 8 клас Істер (2025)

Спростіть вираз:

1) (9m^2)/(25a^2 ) • (35a^3)/(18m^5 ) = (9m^2 • 35a^3)/(25a^2 • 18m^5 ) = 7a/(10m^3 );
2) (7p^3)/(18a^3 ) • (–(27a^4)/(14p^3 )) = –(7p^3 • 27a^4)/(18a^3 • 14p^3 ) = –3a/4;
3) –(5m^3)/(24n^7 ) • (7n^2)/(10m^4 ) = –(5m^3 • 7n^2)/(21n^7 • 10m^4 ) = –1/(6n^5 m);
4) –1/(18c^3 d^4 ) • (–(12c^4 d^4)/7) = (12c^4 d^4)/(18c^3 d^4 • 7) = 2c/21.