Question

B) (-5+2)² : (-9) - [ 2 . (-4 - 2) - (-1)³ . (-5 + 8)] + 7⁰ =



me ajudem plz ​

Answer 1

$\frac{(-5+2)^2}{(-9) - [ 2 . (-4 - 2) - (-1)^3 . (-5 + 8)] + 7^0} = \\\\\frac{9}{-2-[2(-6)-(-1).(3)]+1} =\\\\\frac{9}{-2-[-12+3]+1}=\\\\\frac{9}{-2-[-9]+1} =\\\\\frac{9}{-1+9} = \frac{9}{8}$

Espero ter ajudado!!