69 views
in Algebra by
উৎপাদকে বিশ্লেষণ কর: $4x^3-5x^2+5x-1$

1 Answer

0 like 0 dislike
by
selected by
 
Best answer
ধরি, $f(x)=4x^3-5x^2+5x-1$

তাহলে,
$f\left(\frac14\right)$$=4\left(\frac14\right)^3$$-5\left(\frac14\right)^2$$+5\left(\frac14\right)$$-1$

$=4\cdot\frac1{64}-5\cdot\frac1{16}$$+5\cdot\frac14-1$

$=\frac{1}{16}-\frac{5}{16}+\frac54-1$

$=\frac{1-5+20-16}{16}$

$=\frac0{16}$

$=0$

অর্থাৎ $x=\frac14$ হলে, প্রদত্ত রাশির মান শূন্য ($0$) হয়।

$x=\frac14$

বা, $4x=1$

বা, $4x-1=0$

অর্থাৎ $(4x-1)$, $f(x)$ এর একটি উৎপাদক।

এখন,
$4x^3-5x^2+5x-1$

$=4x^3-x^2-4x^2+x+4x-1$

$=x^2(4x-1)-x(4x-1)+1(4x-1)$

$=(4x-1)(x^2-x+1)$ [Answer]

Related questions

9.5k questions

9.6k answers

122 comments

25 users

Welcome to QnAfy !

Ask questions, find answers, and spread the light of knowledge like the sun. On QnAfy, only registered users can post questions and answers.

If you are a teacher or student, you may register using your own name, your school/coaching center’s name, or your website’s name to actively contribute by asking or answering questions. This will help increase your or your institution’s visibility, and in the case of a website, it will boost your backlink profile as well.

So, Register Now

fb Group | fb Page
WhatsApp Message
Join Telegram Group

QnAfy – Where curiosity meets clarity.

Categories

For the best experience with math, please rotate your mobile to landscape mode or use a tablet, laptop, or PC for optimal viewing.
...