Since <span><span>−12</span><span>-12</span></span> does not contain the variable to solve for, move it to the right side of the equation by adding <span>12</span> to both sides.<span><span><span>x2</span>−4x=12</span></span>Move <span>12</span> to the left side of the equation by subtracting it from both sides.<span><span><span>x2</span>−4x−12=0</span></span>Factor <span><span><span>x2</span>−4x−12</span><span><span>x2</span>-4x-12</span></span> using the AC method.<span><span><span>(x−6)</span><span>(x+2)</span>=0</span></span>Set <span><span>x−6</span></span> equal to <span>0</span> and solve for <span>x</span>.<span><span>x=6</span></span>Set <span><span>x+2</span></span> equal to <span>0</span> and solve for <span>x</span>.<span><span>x=−2</span></span>The solution is the result of <span><span>x−6=0</span></span> and <span><span>x+2=0</span></span><span>x=6,−<span>2</span></span>
