Answer
$$b^{(2\cdot 3)} = b^6$$
Work Step by Step
Power rule: $(a^{m})^{n}=a^{mn}$ states that when a power is raised to a power, you need to multiply the exponents.
For example, if $b^{2}$ is raised to $3$ expressed as $(b^{2})^{3}$, simplifying this will give you the expression:
$$b^{(2\cdot 3)} = b^6$$
