Question

ajudeeeeem aí galera pf
a) -2(3/2)³+1^15-(-2)¹
b) [(-5/3)^-¹+(5/2)^-¹]^-¹

Answer 1

A)
$=-2(3/2)^3+1^{15}-(-2)^1 \\= -2(27/8)+1+2\\=-54/8+3\\=24-164/24\\=-150/24\\=-75/12$
B)
$=[(-5/3)^{-1}+(5/2)^{-1}]^{-1} \\ =(-3/5+2/5)^{-1} \\ =(-1/5)^{-1}\\ =-5/1\\ =-5$