Q. Question 158(iii)
Find a single machine that will do the same job as the given hook-up.
a(×599) machine followed by a (5−100) machine.
Maya multiplied (42×32) by thinking about stretching machines.
Use Maya's idea to multiply 53×23.
Maya's idea is another product law of exponents.
Multiplying Expressions with the same Exponents
ac×bc=(a×b)c
You can use this law with more than two expressions. If the exponents are the same, multiply the expressions by multiplying the bases and using the same exponent. e.g. 28×38×78=(2×3×7)8=428.