Hello,
You're asking: (3^5−3^4)(3^3+3^2)/24.
First, start with the three. (3^5)
(243−3^4)(3^3+3^2)/24
Do the 3 to the power of 4.
(243−81)(3^3+3^2)
Subtract 243-81 to 162.
162(3^3+3^2)/24
Do 3^3 to get 27.
162(27+32)/24
Then, do 3^2 to 9.
162(27+9)/24.
Add 27+9 to get 36 then set up multiplication.
(162)(36)/24
Multiply.
5832/24
Divide.
Therefore, you get 243 as your final answer.