Which are the roots of the quadratic function f (b) = b2 - 75? Check all that apply.

So you have your function befor 2_75 but 75 years befor 2 years it would be = 75 because of the timeline in order you use in a grafgh of 75_2=73 so 73 years befor 2007 was 75+75 = 150 1998 is the awnser

You could think of this as factoring the difference of two squares (if you consider 75 as a "square"

the square root of 75 = 5 * sqrt (3)

We factor it as

(x + 5 * sqrt (3)) * (x - 5 * sqrt (3)

and the roots are

- 5 * sqrt (3) and + 5 * sqrt (3)