a) 1si1/3 =4/3 => (-v3)x[-v(4/3)] =v (12/3) =v4=2
b) 4 si 1/5 =21/5 => v(7/15)xv(21/15) =v(1/3) =(v3)/3
c) 1 si 2/7 =9/7=> v(9/7)xv(4/7) =v(9/4) =3/2
d) v(2,8)xv70 =V(2^2x7^2) =2x7=14
e) v1,21 xv100 =v121 =v(11^2) =11
f) v(1,6) xv(0,9) =v(16/10) xv(9/10) =v[(16x9)/100]=12/10=1,2
g) v10xv(2,5) =v25=5
h) v0,(3) xv3=v(3/9)x3=v(9/9)=1
i) -v99 x v2,(27) = -v99 x v(227-2)/99 = -v99 x v(225/99) =-v225 =-15
j) v1,(3) xv(1/3) =v(13-1)/9 xv(1/3) =v12/9 x v1/3 = v(4/3)x(1/3) =v4 =2
k) v13 x(-v52) =v13 x(-2v13) =-2x13=-26
l) 4 si 1/6 =25/6
-v6 x(-v25/6) = -5
7) a) v147 :v3 =V(147:3) = v49 =7
b) v72 :v2 =v(72:2) =v36 =6
c) v125:v5 =v(125:5) =v25=5
d) v112 :v7 =v(112:7) =v16 =4
e) V2^5x3^6 : v2x3^2 =v(2^4 x3^4) =2^2x3^2 =36
f) v7^3 x5^5 : v7x5^3 = v(7^2x 5^2) =7x5=35
g)v11^7 :v11^3 = v11^4 =11^2=121
h) -v32 :v2^3 =-v(32:8) =-v4 =-2
i) v24 :(-v2x3) =-v(24:6 )= -v4 =-2
j) -v864 : v(2^3)x3 =-v(864:24) =v36=6
k) -v16^4 :v2^4 =-v(16^4:16) = -v16^3 =-v(2^4)^3 =-v 2^12 =-2^6 =-64
l) v125^10 :v25^15 =v (5^3)^10 : v(5^2)^15 =v(5^30):(5^30) =v1=1
