Question

Find a single repeater machine that will do the same work as hook-up.

Answer 1

Using law of exponents, (a^m × aⁿ = a^{m + n})   ...[∵ a is non-zero integer]

Repeater machine can do the work is equal to 2² × 2³ × 2⁴ = 2⁹

So, (× 2⁹) single machine can do the same work.