What does this mean?
they are both separate​

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

Radials are weird[tex](14 \sqrt{6}) ^{2} [/tex]whats the answer and how do i solve pls

The length of a basketball court is 84 feet. kareem starts at one end of the court and runs 20 feet forward and then 8 feet back. how many more times will he have to do this until he reaches the end of the basketball court? what equation represents this relationship? !