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Question

16 x^{2} + p x + 25

রাশিটি পূর্ণবর্গ হতে হলে p- এর মান কত হবে ?

20

10

40

15

ANSWER : 3

Descrption

<p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">প্রদত্ত রাশি  =  16x<sup>2</sup>   +   px   +   25</span></p>
<p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">রাশিটি পূর্ণবর্গ হলে,&nbsp; p<sup>2</sup>  -  4&times;16&times;25  =  0</span></p>
<p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">বা,&nbsp;&nbsp;</span><span style = "color: #212529; font - family: bangla, sans - serif; font - size: 18px; text - align: justify; background - color: #ffffff;">p</span><sup style = "color: #212529; font - family: bangla, sans - serif; text - align: justify;">2</sup><span style = "color: #212529; font - family: bangla, sans - serif; font - size: 18px; text - align: justify; background - color: #ffffff;">  =  4&times;16&times;25  =  1600</span></p>
<p><span style = "color: #212529; font - family: bangla, sans - serif; font - size: 18px; text - align: justify; background - color: #ffffff;">সুতরাং, p  =  &radic;1600  =  <strong>40</strong></span></p>

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