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font-family="Arial" font-size="16" text-anchor="middle" x="96.5" y="26">2</text><text font-family="Arial" font-size="16" text-anchor="middle" x="105.5" y="26">n</text><text font-family="Arial" font-size="12" text-anchor="middle" x="113.5" y="19">2</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="124.5" y="26">+</text><text font-family="Arial" font-size="16" text-anchor="middle" x="136.5" y="26">9</text><text font-family="Arial" font-size="16" text-anchor="middle" x="145.5" y="26">n</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="157.5" y="26">+</text><text font-family="Arial" font-size="16" text-anchor="middle" x="174.5" y="26">13</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="195.5" y="26">−</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="205.5" x2="217.5" y1="20.5" y2="20.5"/><text font-family="Arial" 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font-size="16" text-anchor="middle" x="365.5" y="26">n</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="377.5" y="26">−</text><text font-family="Arial" font-size="16" text-anchor="middle" x="389.5" y="26">1</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="406.5" y="26">+</text><text font-family="Arial" font-size="16" text-anchor="middle" x="423.5" y="26">13</text><text font-family="Arial" font-size="16" text-anchor="middle" x="434.5" y="26">}</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="8.5" y="71">=</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="23.5" x2="35.5" y1="65.5" y2="65.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="29.5" y="60">1</text><text font-family="Arial" font-size="16" text-anchor="middle" x="29.5" y="82">6</text><text font-family="Arial" font-size="16" text-anchor="middle" x="40.5" y="71">[</text><text font-family="Arial" font-size="16" text-anchor="middle" x="46.5" y="71">2</text><text font-family="round_brackets18549f92a457f2409" font-size="16" text-anchor="middle" x="54.5" y="71">(</text><text font-family="round_brackets18549f92a457f2409" font-size="16" text-anchor="middle" x="139.5" y="71">)</text><text font-family="Arial" font-size="16" text-anchor="middle" x="60.5" y="71">n</text><text font-family="Arial" font-size="12" text-anchor="middle" x="68.5" y="64">3</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="79.5" y="71">−</text><text font-family="round_brackets18549f92a457f2409" font-size="16" text-anchor="middle" x="90.5" y="71">(</text><text font-family="round_brackets18549f92a457f2409" font-size="16" text-anchor="middle" x="127.5" y="71">)</text><text font-family="Arial" font-size="16" text-anchor="middle" x="96.5" y="71">n</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="108.5" y="71">−</text><text font-family="Arial" font-size="16" text-anchor="middle" x="120.5" y="71">1</text><text font-family="Arial" font-size="12" text-anchor="middle" x="133.5" y="64">3</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="149.5" y="71">+</text><text font-family="Arial" font-size="16" text-anchor="middle" x="161.5" y="71">9</text><text font-family="round_brackets18549f92a457f2409" font-size="16" text-anchor="middle" x="169.5" y="71">(</text><text font-family="round_brackets18549f92a457f2409" font-size="16" text-anchor="middle" x="254.5" y="71">)</text><text font-family="Arial" font-size="16" text-anchor="middle" x="175.5" y="71">n</text><text font-family="Arial" font-size="12" text-anchor="middle" x="183.5" y="64">2</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="194.5" y="71">−</text><text font-family="round_brackets18549f92a457f2409" font-size="16" 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text-anchor="middle" x="299.5" y="71">n</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="311.5" y="71">−</text><text font-family="Arial" font-size="16" text-anchor="middle" x="323.5" y="71">n</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="335.5" y="71">+</text><text font-family="Arial" font-size="16" text-anchor="middle" x="347.5" y="71">1</text><text font-family="Arial" font-size="16" text-anchor="middle" x="359.5" y="71">]</text><text font-family="math197264fe4a13b5e19716dfb134c" font-size="16" text-anchor="middle" x="8.5" y="116">=</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="23.5" x2="35.5" y1="110.5" y2="110.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="29.5" y="105">1</text><text font-family="Arial" font-size="16" text-anchor="middle" x="29.5" y="127">6</text><text font-family="Arial" font-size="16" text-anchor="middle" x="40.5" 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