Please explain how to solve:

A circular table is painted yellow with a red square in the middle. The radius of the tabletop is 6x. The side length of the red square is 3x. What is the area of the yellow part of the tabletop? Write your answer in factored form.

2 answers

Formula for area of table minus formula for area of square.

Do you know those two formulas? If not, look in your textbook or Google them.
do i minus them then ?
area of a sqaure is : a^2