Can anyone help me with this algebraic expression

(4a+3b)² (3a-4b)²​

How many neutrons does an element have if its atomic number is 50 and its mass number is 166

What is happening when the water inside a kettle heats up and begins to boil

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars