Question

ALGUÉM ME AJUDA EU Ñ SEI FAZER ESTA CONTA ._. heelp!

Answer 1

1. Opera primeiro os parênteses e depois os colchetes:

$(2- \frac{1}{2})^{2} : [ (1- \frac{3}{5})^{2} *10+ ( \frac{1}{2} )^{3} ] \\ \\ ( \frac{4-1}{2} )^{2} :[ ( \frac{5-3}{5} )^{2} *10+ \frac{1}{8} ] \\ \\ ( \frac{3}{2} )^{2} :[ ( \frac{2}{5} )^{2} *10+ \frac{1}{8} ] \\ \\ \frac{9}{4} :[ \frac{4}{25} *10+ \frac{1}{8} ] \\ \\ \frac{9}{4} :[ \frac{40}{25} + \frac{1}{8} ] \\ \\ \frac{9}{4} :[ \frac{8}{5}+ \frac{1}{8} ] \\ \\ \frac{9}{4} : \frac{8+1}{40} \\ \\ \frac{9}{4} : \frac{9}{40} = \frac{9}{4} * \frac{40}{9} = \frac{360}{36} = 10$