Question

((1,5)^2)^-1*(-214)

Answer 1

((1,5)^2)^-1*(-214) = (1,5)^-2*(-214) = 11,5^2*(-214) = 12,25*(-214) = -219 = -73

Answer 2

$1)(1.5 ^{2} ) ^{-1} =2.25 ^{-1} = frac{1}{2.25} =1:2 frac{25}{100} =1:2 frac{1}{4} =1: frac{9}{4} =1* frac{4}{9} = frac{4}{9} \ 2) frac{4}{9} *(- frac{21}{4})=-( frac{4*21}{9*4}) =- frac{1*7}{3*1} =- frac{7}{3} =-2 frac{1}{3}$