<span><span><span>2x</span>+20</span>=<span><span>−<span>16<span>x2</span></span></span>+<span>28x</span></span></span>Step 2: Subtract -16x^2+28x from both sides.<span><span><span><span>2x</span>+20</span>−<span>(<span><span>−<span>16<span>x2</span></span></span>+<span>28x</span></span>)</span></span>=<span><span><span>−<span>16<span>x2</span></span></span>+<span>28x</span></span>−<span>(<span><span>−<span>16<span>x2</span></span></span>+<span>28x</span></span>)</span></span></span><span><span><span><span>16<span>x2</span></span>−<span>26x</span></span>+20</span>=0</span>Step 3: Use quadratic formula with a=16, b=-26, c=20.<span>x=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a</span></span></span><span>x=<span><span><span>−<span>(<span>−26</span>)</span></span>±<span>√<span><span><span>(<span>−26</span>)</span>2</span>−<span><span>4<span>(16)</span></span><span>(20)</span></span></span></span></span><span>2<span>(16)</span></span></span></span><span>x=<span><span>26±<span>√<span>−604</span></span></span><span>32</span></span></span>
