1.8 times tens, negative five. And our C is negative 3.6
times ten to the negative seven. So let's plug everything in. We get negative 1.8
times 10th to negative five squared plus minus a square root of 1.8 times ten to negative five squared minus four times one times A times C times this guy. So divided by two. So now we simplify these guys, and we get negative 3.24 times ten to negative ten plus minus 0012 divided by two.