File: /var/www/content-sp/wiris-formulas/0c439469678dd72f590df589caa00144.ini
mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∴</mo><mi mathvariant="normal"> </mi><mover><mi mathvariant="normal">x</mi><mo>¯</mo></mover><mo>=</mo><mfrac><mrow><mn>1</mn><mi mathvariant="normal"> </mi><mo>×</mo><mi mathvariant="normal"> </mi><mi mathvariant="normal">x</mi><mi mathvariant="normal"> </mi><mo>+</mo><mn>2</mn><mi mathvariant="normal"> </mi><mo>×</mo><mn>2</mn><mi mathvariant="normal">x</mi><mo>+</mo><mn>3</mn><mi mathvariant="normal"> </mi><mo>×</mo><mn>3</mn><mi mathvariant="normal">x</mi><mo>+</mo><mi mathvariant="normal"> </mi><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mi mathvariant="normal"> </mi><mo>+</mo><mi mathvariant="normal">n</mi><mi mathvariant="normal"> </mi><mo>×</mo><mi mathvariant="normal"> </mi><mi>nx</mi></mrow><mrow><mi mathvariant="normal">x</mi><mi mathvariant="normal"> </mi><mo>+</mo><mi mathvariant="normal"> </mi><mn>2</mn><mi mathvariant="normal">x</mi><mi mathvariant="normal"> </mi><mo>+</mo><mi mathvariant="normal"> </mi><mn>3</mn><mi mathvariant="normal">x</mi><mi mathvariant="normal"> </mi><mo>+</mo><mi mathvariant="normal"> </mi><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mi mathvariant="normal"> </mi><mo>+</mo><mi mathvariant="normal"> </mi><mi>nx</mi></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>1</mn><mo>+</mo><msup><mn>2</mn><mn>2</mn></msup><mo>+</mo><msup><mn>3</mn><mn>2</mn></msup><mo>+</mo><mi mathvariant="normal"> </mi><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>+</mo><mi mathvariant="normal"> </mi><msup><mi mathvariant="normal">n</mi><mn>2</mn></msup></mrow><mrow><mn>1</mn><mo>+</mo><mn>2</mn><mo>+</mo><mn>3</mn><mo>+</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>_</mo><mo>+</mo><mi mathvariant="normal"> </mi><mi mathvariant="normal">n</mi></mrow></mfrac><mo>=</mo><mfrac><mrow><mo>∑</mo><msup><mi mathvariant="normal">n</mi><mn>2</mn></msup></mrow><mrow><mo>∑</mo><mi mathvariant="normal">n</mi></mrow></mfrac><mo>=</mo><mfrac><mrow><mi mathvariant="normal">n</mi><mfenced separators="|"><mrow><mi mathvariant="normal">n</mi><mo>+</mo><mn>1</mn></mrow></mfenced><mo>(</mo><mn>2</mn><mi mathvariant="normal">n</mi><mo>+</mo><mn>1</mn><mo>)</mo></mrow><mrow><mn>6</mn><mi mathvariant="normal"> </mi><mo>×</mo><mfrac><mrow><mi mathvariant="normal">n</mi><mo>(</mo><mi mathvariant="normal">n</mi><mo>+</mo><mn>1</mn><mo>)</mo></mrow><mn>2</mn></mfrac><mo>=</mo><mfrac><mrow><mn>2</mn><mi mathvariant="normal">n</mi><mo>+</mo><mn>1</mn></mrow><mn>3</mn></mfrac></mrow></mfrac></math>