Ôn Tập Chương 1
Hướng dẫn giải Bài 80 (Trang 33 SGK Toán Đại số 8, Tập 1)
<p>L&agrave;m t&iacute;nh chia:</p> <p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>)</mo><mo>&#160;</mo><mo>(</mo><mn>6</mn><msup><mi>x</mi><mn>3</mn></msup><mo>&#8722;</mo><mn>7</mn><msup><mi>x</mi><mn>2</mn></msup><mo>&#8722;</mo><mi>x</mi><mo>+</mo><mn>2</mn><mo>)</mo><mo>&#160;</mo><mo>:</mo><mo>&#160;</mo><mo>(</mo><mn>2</mn><mi>x</mi><mo>+</mo><mn>1</mn><mo>)</mo><mo>;</mo><mspace linebreak="newline"/><mi>b</mi><mo>)</mo><mo>&#160;</mo><mo>(</mo><msup><mi>x</mi><mn>4</mn></msup><mo>&#8722;</mo><msup><mi>x</mi><mn>3</mn></msup><mo>+</mo><msup><mi>x</mi><mn>2</mn></msup><mo>+</mo><mn>3</mn><mi>x</mi><mo>)</mo><mo>&#160;</mo><mo>:</mo><mo>&#160;</mo><mo>(</mo><msup><mi>x</mi><mn>2</mn></msup><mo>&#8722;</mo><mn>2</mn><mi>x</mi><mo>+</mo><mn>3</mn><mo>)</mo><mo>;</mo><mspace linebreak="newline"/><mi>c</mi><mo>)</mo><mo>&#160;</mo><mo>(</mo><msup><mi>x</mi><mn>2</mn></msup><mo>&#8722;</mo><msup><mi>y</mi><mn>2</mn></msup><mo>+</mo><mn>6</mn><mi>x</mi><mo>+</mo><mn>9</mn><mo>)</mo><mo>:</mo><mo>(</mo><mi>x</mi><mo>+</mo><mi>y</mi><mo>+</mo><mn>3</mn><mo>)</mo><mo>;</mo></math></p> <p><strong>Giải:</strong></p> <p><strong><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>)</mo><mo>&#160;</mo><mo>(</mo><mn>6</mn><msup><mi>x</mi><mn>3</mn></msup><mo>&#8722;</mo><mn>7</mn><msup><mi>x</mi><mn>2</mn></msup><mo>&#8722;</mo><mi>x</mi><mo>+</mo><mn>2</mn><mo>)</mo><mo>&#160;</mo><mo>:</mo><mo>&#160;</mo><mo>(</mo><mn>2</mn><mi>x</mi><mo>+</mo><mn>1</mn><mo>)</mo></math></strong></p> <p><strong><img 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Hướng dẫn Giải Bài 80 (Trang 33, SGK Toán 8, Tập 1)
GV: GV colearn
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Video hướng dẫn giải bài tập
Hướng dẫn Giải Bài 80 (Trang 33, SGK Toán 8, Tập 1)
GV: GV colearn