158. Find a single machine that will do the same job as the given hook-up. (a) a (× 2^3) machine followed by (× 2^–2) machine. 158. Find a single machine that will do the same job as the given hook-up. (a) a (× 2^3) machine followed by (× 2^–2) machine. August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related