Adv
AnilSinghBora
  • 0
Guru

Verify:(ii) x3–y3 = (x–y)(x2+xy+y2) Q.9(2)

  • 0

Please give me the best way for solving the problem of class 9th ncert math of Polynomials chapter of math of class 9th of exercise 2.5 of question no 9(2) what is the tricky way for solving this question Verify:(ii) x3–y3 = (x–y)(x2+xy+y2)

Share

1 Answer

  1. We know that,(x–y)3 = x3–y3–3xy(x–y)

    ⇒ x3−y3 = (x–y)3+3xy(x–y)

    ⇒ x3−y3 = (x–y)[(x–y)2+3xy]

    Taking (x+y) common ⇒ x3−y3 = (x–y)[(x2+y2–2xy)+3xy]

    ⇒ x3+y3 = (x–y)(x2+y2+xy)

    • 0
Leave an answer

Leave an answer

Browse

Choose from here the video type.

Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

Captcha Click on image to update the captcha.

Related Questions