Question

решитеееееееее................

Answer 1

-1/4-3/4=-1
-2/9+(-2/3)^2=-2/9+4/9=2/9
-1+2/9=-9/9+2/9=-7/9

Answer 2

$- frac{1}{4} + (- frac{3}{4} )- frac{2}{9} +(- frac{2}{3})^2=- frac{1}{4}- frac{3}{4}- frac{2}{9}+ frac{4}{9} =-1+ frac{2}{9} = frac{2}{9}- frac{9}{9} =- frac{7}{9}$