1)

243n5×32n+19n×3n1=?


A) 1

B) 3

C) 9

D) 27

Answer:

Option C

Explanation:

Given Expression =243n5×32n+19n×3n1 =(35)n5×32n+1(32)n×3n1 =3(5×n5)×32n+132n×3n1 =3n×32n+132n×3n1 =3n+2n+132n+n1 =33n+133n1 =3(3n+13n+1) =32=9