00:01
We're given a f of z.
00:03
So z is our independent variable.
00:05
It's pretty important as we look at this.
00:07
But we're given z squared plus one all over 3z.
00:15
Now the first thing i would make my students do is rewrite this because when we're dividing by a monomial, we can divide each piece individually by that.
00:26
Now, most of my students are really good about taking two fractions and putting.
00:30
Them together this way, but they forget that you can split up a fraction.
00:34
So these two things are equal.
00:36
If you don't believe me, double check.
00:39
And the whole reason why that's to your benefit is you can cancel out one of these zs, or you could rewrite the entire problem as a one -third z to the first, if that helps you, plus one -third z to the negative first power, because when the z is in the denominator, it's a negative exponent...