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Question

9 x^{2} + 16 y^{2}

এর সাথে কত যোগ করলে যোগফল পূর্ণবর্গ রাশি হবে?

6 xy

12xy

24xy

144xy

ANSWER : 3

Descrption

<pre>মনে করি,  a যোগ করতে হবে <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>9</mn><msup><mi>x</mi><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mn>16</mn><msup><mi>y</mi><mn>2</mn></msup><mo>  +  </mo><mi>a</mi><mo>&#xA0;</mo><mspace linebreak = "newline"/><mo> = </mo><mo>(</mo><mn>3</mn><mi>x</mi><msup><mo>)</mo><mn>2</mn></msup><mo>  +  </mo><mo>(</mo><mn>4</mn><mi>y</mi><msup><mo>)</mo><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mn>2</mn><mo>.</mo><mn>3</mn><mi>x</mi><mo>.</mo><mn>4</mn><mi>y</mi><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>9</mn><msup><mi>x</mi><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mn>16</mn><msup><mi>y</mi><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mi>a</mi><mo>&#xA0;</mo><mspace linebreak = "newline"/><mo> = </mo><mo>(</mo><mn>3</mn><mi>x</mi><msup><mo>)</mo><mn>2</mn></msup><mo>  +  </mo><mo>(</mo><mn>4</mn><mi>y</mi><msup><mo>)</mo><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mn>24</mn><mi>x</mi><mi>y</mi><mo>&#xA0;</mo><mspace linebreak = "newline"/><mo>.</mo><mo>'</mo><mo>.</mo><mo>&#xA0;</mo><mi>a</mi><mo>&#xA0;</mo><mo> = </mo><mn>24</mn><mi>x</mi><mi>y</mi><mo>&#xA0;</mo></math></pre>

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