Question

a) (-4) - [(-8) ÷ ( +2)]² - 6 =

b) (-576) ÷ (-12)² - ( -125) ÷ (-5)²

Answer 1

(-4)-[(-8)÷(+2)]²-6
(-4)-[(-8)÷(+4)]²-6
(-4)-[(-8)÷(+16)]-6
(-4)-[-2]-6
(-4)+2-6
-10+2
-8
O resultado é: -8

(-576)÷(-12)²-(-125)÷(-5)²
(-576)÷(+144)-(-125)÷(+25)
(-576)÷(+144)+125÷ +25
-4 +5
+1
A resposta é: +1