РЕШИТЕ ПОЖАЛУЙСТА(Задания на фото)

0.5ab²*(-3a²b)*(-2/3)a⁷b⁵c =0,5*(-3)*(-2/3)a¹⁺²⁺⁷b²⁺¹⁺⁵c=a¹⁰b⁸c ------------------------------------------------------------------------------------ x⁹(5/7 -3/14 - 1 1/2 )=1 x⁹*((10-3-21)/14) =1 -x⁹=1 x=-1 -------------------------------------------------------- -(2/3x²y²)⁴ * (-2 1/4xy³)³ =- 2⁴/3⁴ x⁸y⁸ *(-3⁶/2⁶)x³y⁹ =2⁴⁻⁶*3⁶⁻⁴x⁸⁺¹y⁸⁺⁹=(9/4)*x⁹y¹⁷ -------------------------------------------------------------------------------------------------- (3xy)³*(1/3xy²)²=27*(1/9)x³⁺²y³⁺⁴ =3x⁵y⁷ ------------------------------------------------------------------------------------------------- (1,2x²z⁵)²*(2x⁴z)³       9,6x¹⁶z¹³ ----------------------- = --------------- =16 x¹⁵z⁵  0,6xz⁸                      0,6xz⁸