4a2+11a+6=0 হলে a= ?
4a2+11a+6=0 হলে a= ? Correct Answer -0.75
<math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>4</mn><msup><mi>a</mi><mn>2</mn></msup><mo> </mo><mo> + </mo><mo> </mo><mn>11</mn><mi>a</mi><mo> </mo><mo> + </mo><mo> </mo><mn>6</mn><mo> </mo><mo> = </mo><mo> </mo><mn>0</mn><mspace linebreak = "newline"/><mo>⇒</mo><mo> </mo><mn>4</mn><msup><mi>a</mi><mn>2</mn></msup><mo> </mo><mo> + </mo><mo> </mo><mn>8</mn><mi>a</mi><mo> </mo><mo> + </mo><mo> </mo><mn>3</mn><mi>a</mi><mo> </mo><mo> + </mo><mn>6</mn><mo> </mo><mo> = </mo><mo> </mo><mn>0</mn><mspace linebreak = "newline"/><mo>⇒</mo><mo> </mo><mn>4</mn><mi>a</mi><mo> </mo><mfenced><mrow><mi>a</mi><mo> </mo><mo> + </mo><mo> </mo><mn>2</mn></mrow></mfenced><mo> </mo><mo> + </mo><mo> </mo><mn>3</mn><mfenced><mrow><mi>a</mi><mo> </mo><mo> + </mo><mo> </mo><mn>2</mn></mrow></mfenced><mo> </mo><mo> = </mo><mo> </mo><mn>0</mn><mspace linebreak = "newline"/><mo>⇒</mo><mfenced><mrow><mi>a</mi><mo> </mo><mo> + </mo><mo> </mo><mn>2</mn></mrow></mfenced><mo> </mo><mfenced><mrow><mn>4</mn><mi>a</mi><mo> </mo><mo> + </mo><mo> </mo><mn>3</mn></mrow></mfenced><mo> </mo><mo> = </mo><mn>0</mn><mspace linebreak = "newline"/><mo>∴</mo><mo> </mo><mi>a</mi><mo> </mo><mo> = </mo><mo> </mo><mo> - </mo><mn>2</mn><mo>,</mo><mo> - </mo><mfrac><mn>3</mn><mn>4</mn></mfrac><mo> </mo><mo> </mo></math> বা, a = - 2, - 0.75
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Feb 20, 2025