-(⅖)³+(-⅖)²

-(⅖)³+(-⅖)²=-8/125+4/25=-8/125+20/125=12/125

- 8/125 + 4/25= = 12/125

-(⅖)³+(-⅖)²= -0,4³+(-0,4)²=-0,064+0,16=0,096