2/(16a^2*(-4^3)^2)=(1/(8a^2*(4^3)^2)=1/(2^3*a^2*4^6)=1/(2^3*a^2*2^12)=1/(2^15*a^2)=1/(32768a^2)
1) <span>16.7-(-8.9)= 16.7 + 8.9= 25.6
2)7.2-8.9= -1.7
3) 0 - 5.7= - 5.7
4) -13.6 - 14.4= -28
5) -14.8-(-8.12) = -14.8 + 8.12= -6. 68
6) 0 -(-19.3) = 19.3
7) </span>-7/24-(-17/36)=
+
= -
+
=
8) <span>2/9-1/3= </span>
= -
9) 3 1/5-(-4 1/7)=
+
=
+
=
= 4
5*28=5*4*7=20*7=140
8*35=8*5*7=40*7=280