Equations, SM-Bank 066 Solve the quadratic equation \(x^2+3=147\) for \(x<0\). (2 marks) --- 4 WORK AREA LINES (style=lined) --- Show Answers Only \(x=-12\) Show Worked Solution \(x^2+3\) \(=147\) \(x^2\) \(=147-3\) \(x^2\) \(=144\) \(\sqrt{x^2}\) \(=\sqrt{144}\) \(x\) \(=\pm12\) \(\therefore\ \text{Since}\ x<0\ x=-12\)