Fixed minor typo in equation

StephenElston · StephenElston · commit 593143fe2ca4 · 2019-05-12T08:34:08.000-07:00
diff --git a/Module01/01-07-Quadratic Equations.ipynb b/Module01/01-07-Quadratic Equations.ipynb
@@ -574,7 +574,7 @@
     "\n",
     "To find ***h***, we perform the following calculation:\n",
     "\n",
-    "\\begin{equation}h = \\frac{-b}{2a}\\;\\;\\;\\;=\\;\\;\\;\\;\\frac{-1 - 16}{2\\cdot2}\\;\\;\\;\\;=\\;\\;\\;\\;\\frac{16}{4}\\;\\;\\;\\;=\\;\\;\\;\\;4\\end{equation}\n",
+    "\\begin{equation}h = \\frac{-b}{2a}\\;\\;\\;\\;=\\;\\;\\;\\;\\frac{-1 \\cdot - 16}{2\\cdot2}\\;\\;\\;\\;=\\;\\;\\;\\;\\frac{16}{4}\\;\\;\\;\\;=\\;\\;\\;\\;4\\end{equation}\n",
     "\n",
     "Then we simply plug the value we've obtained for ***h*** into the quadratic equation in order to find ***k***:\n",
     "\n",
