Distribute the Negative Sign:<span>=<span><span><span><span>3<span>x3</span></span>+<span>2<span>x2</span></span></span>−<span>5x</span></span>+<span><span>−1</span><span>(<span><span>8<span>x3</span></span>−<span>2<span>x2</span></span></span>)</span></span></span></span><span>=<span><span><span><span><span><span>3<span>x3</span></span>+<span>2<span>x2</span></span></span>+</span>−<span>5x</span></span>+<span><span>−1</span><span>(<span>8<span>x3</span></span>)</span></span></span>+<span><span>−1</span><span>(<span>−<span>2<span>x2</span></span></span>)</span></span></span></span><span>=<span><span><span><span><span><span><span>3<span>x3</span></span>+<span>2<span>x2</span></span></span>+</span>−<span>5x</span></span>+</span>−<span>8<span>x3</span></span></span>+<span>2<span>x2</span></span></span></span>Combine Like Terms:<span>=<span><span><span><span><span>3<span>x3</span></span>+<span>2<span>x2</span></span></span>+<span>−<span>5x</span></span></span>+<span>−<span>8<span>x3</span></span></span></span>+<span>2<span>x2</span></span></span></span><span>=<span><span><span>(<span><span>3<span>x3</span></span>+<span>−<span>8<span>x3</span></span></span></span>)</span>+<span>(<span><span>2<span>x2</span></span>+<span>2<span>x2</span></span></span>)</span></span>+<span>(<span>−<span>5x</span></span>)</span></span></span><span>=<span><span><span>−<span>5<span>x3</span></span></span>+<span>4<span>x2</span></span></span>+<span>−<span>5x</span></span></span></span>Answer:<span>=<span><span><span>−<span>5<span>x3</span></span></span>+<span>4<span>x2</span></span></span>−<span>5<span>x</span></span></span></span>
