1
a)a²b=(-0,4)²*(-6)=0,16*(-6)=-0,96
b)=6*(1/2)³*(-3/4)*(-2/3)=6*1/8*(-3/4)*(-2/3)=6/8*6/12=3/4
c)=(-2 1/3)*(1 1/2)²*(-3,2)=(-7/3)*(9/4)32/10)=(-21/4)*(-32/10)=168/10=16 8/10=16 4/5
d)=5*(-0,5)²*(-3)=5*1/4*(-3)=5/4*(-3)=-15/4=-3 3/4
2
a) ((-0,6)*(-0,5)²*3 1/3)²=((-6/10)*(1/4)²*10/3)²=((-6/10)*1/16*10/3)²=(-30/240)²=(-1/8)²=1/64
b)((-1÷-1/2)+(-1/3)³)²*8/25=(2-1/8)²*8/25=(15/8)²*8/25=225/64*8/25=9/8=1 1/8
c)√-4*(-1)³+12*1/5-5*(-6)=√4+12/5+30=2+12/5+30=10/5+12/5+150/5=172/5=34 2/5