Question

Calcular as expressões

A)-3× [-2-(-3)×(+5)+(+2)×(-3)]
B)(-12)÷(-3)-(-5)×(+2)
C)-12+[(-7-3)÷(-2)
D)-20÷{-6+[(-2)×(-3)÷(+2)]-2}
E)10-{-6+[(-12)÷(-3)-8]}

Me ajuda por favor

Answer 1

A) −3.(−2−(−3).(5)+(2).(−3))

−3(−2−(−15)+(2)(−3))

−3(13 + (2)(−3))

−3(13 + −6)

−3.(7)

= −21

B) (-12) : (-3) - (-5) x (+2) =

4 - (-10)

4 + 10

14