a: =3^(15-5)=3^10
b: =3^16:3^2=3^14
c: =2^5:2^4=2
`a,3^(15) : 3^5=3^(15-5)=3^(10)`
`b,9^8 : 3^2=(3^2)^8 : 3^2= 3^(16):3^2=3^(16-2)=3^14`
`c, 32:2^4=2^5:2^4=2^(5-4)=2^1`
a,315:35=315−5=310a,315:35=315-5=310
b,98:32=(32)8:32=316:32=316−2=314b,98:32=(32)8:32=316:32=316-2=314
c,32:24=25:24=25−4=21