00:01
This problem wants us to find the real zeros of f and the x intercepts of the graph of f, and the function we're given is x squared plus 2x minus 24.
00:08
And what's nice about this is when we find the real zeros and x intercepts, they are the same thing.
00:14
They are the values that make our function evaluate to zero because an x intercept is referred to as a zero because it automatically has the y value of zero no matter where the x intercept is.
00:27
So if we can solve for the x values that make this function, equal to zero, then we've found those x intercepts and those real zeros.
00:33
So when we want to solve for this, one method to try, and the first method that you probably should try, because it's the fastest method is factoring.
00:41
And for a trinomial like this, you are looking for two numbers that would multiply to be negative 24, but also add to be that two coefficient of x in the middle.
00:51
And those two values for this case would be a positive 12.
00:55
Nope...