Question

Me ajudem a fazer essa conta:
-1+{40:[√4×(-5)+(-20+4):(+3)] }

Answer 1

-1+{40÷[√4x(-5)+(-20+4)÷(+3)]}
-1 +{40÷[√4 ×(-5) -16)÷3]}
-1 +{40÷[√4×(-21)÷3]}
-1 +{40÷[√4 ×(-7)]}=
-1+{40÷[2-7]}=

-1 +{40÷(-5)}=
-1-8= -9