Problem
\( x^{2}+3 x+7=0 \)
Solution
Step 1 ：\(x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}\)
Step 2 ：\(x = \frac{-3 \pm \sqrt{3^{2}-4(1)(7)}}{2(1)}\)
Step 3 ：\(x = \frac{-3 \pm \sqrt{-23}}{2}\)
Step 1 ：\(x = \frac{-b \pm \sqrt{b^{2}-4ac}}{2a}\)
Step 2 ：\(x = \frac{-3 \pm \sqrt{3^{2}-4(1)(7)}}{2(1)}\)
Step 3 ：\(x = \frac{-3 \pm \sqrt{-23}}{2}\)
