Question

Let ​f(x)=x2−16 and ​g(x)=15−x. Perform the composition or operation indicated.
​(fg)(7​)

Answer 1

Answer:

$(2x - 16)(15 - x) \\ (2(7) - 16)(15 - 7) \\ (14 - 16)(8) \\ ( - 2)(8) \\ = - 16$