Question

Помогите пожалуйста. Срочно!!!

Answer 1

${0.75}^{ - 2} - {1.5}^{ - 3} - ( - 3)^{0 } = \ = ( frac{3}{4} )^{ - 2} - ( frac{3}{2} ) ^{ - 3} - 1 = \ = ( frac{4}{3} )^{2} - ( frac{2}{3} ) ^{3} - 1 = \ = frac{16}{9} - frac{8}{27} - 1 = \ = frac{48 - 8 - 27}{27} = \ = frac{13}{27}$