Step 1: Subtract 1 from both sides.<span><span><span><span>6<span>d2</span></span>+<span>5d</span></span>−1</span>=<span>1−1</span></span><span><span><span><span>6<span>d2</span></span>+<span>5d</span></span>−1</span>=0</span>Step 2: Factor left side of equation.<span><span><span>(<span><span>6d</span>−1</span>)</span><span>(<span>d+1</span>)</span></span>=0</span>Step 3: Set factors equal to 0.<span><span><span><span>6d</span>−1</span>=<span><span><span>0<span> or </span></span>d</span>+1</span></span>=0</span><span><span>d=<span><span><span>1/6</span><span> or </span></span>d</span></span>=<span>−1</span></span>Answer:<span><span>d=<span><span><span>1/6</span><span> or </span></span>d</span></span>=<span>−<span>1</span></span></span>
