https://or.khanacademy.org/math/od-math-class-8-new-book/x648dc020d7206462:power-play/x648dc020d7206462:exponential-notation-and-operations/e/exponents-2-a 2026-04-08T15:53:17.03241881Z ଘାତାଙ୍କ ବିଷୟରେ ବୁଝିବା Basics of exponents ashish exercise