Please write out the expression step by step to show why this is true 1. [(2x + 3y)⁴]² = (2x + 3y)⁸

Ineed to learn how to solve this problem

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.

Which diagram best shows how fraction bars can be used to evaluate 1/2 divided by 1/4?