if-the-side-length-of-a-square-cross-section-is-given-by-fx-2x-1-what-is-the-are

Question

If the side length of a square cross section is given by f(x) = 2x + 1, what is the area function a(x)?

Accepted Answer

(2x + $$1)^2$$

Answer

$$2x^2 + 1$$

Answer

2x + 1

Answer

$$4x^2 + 1$$