-1 Deepak BoraNewbie Asked: July 24, 20202020-07-24T13:45:34+05:30 2020-07-24T13:45:34+05:30In: CBSE Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients. -1 NCERT CHAPTER 2.2 QUESTION NO 2 chapeterncertpolynomial Share Facebook 1 Answer Voted Oldest Recent Deepak Bora Newbie 2020-07-24T13:49:19+05:30Added an answer on July 24, 2020 at 1:49 pm Solutions: (i) x^{2}â€“2x â€“8 â‡’ x^{2}â€“ 4x+2xâ€“8 = x(xâ€“4)+2(xâ€“4) = (x-4)(x+2) Therefore, zeroes of polynomial equation x^{2}â€“2xâ€“8 are (4, -2) Sum of zeroes = 4â€“2 = 2 = -(-2)/1 = -(Coefficient of x)/(Coefficient of x^{2}) Product of zeroes = 4Ã—(-2) = -8 =-(8)/1 = (Constant term)/(Coefficient of x^{2}) 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Leave an answerLeave an answerCancel reply Featured image Select file Browse Add a Video to describe the problem better. Video type Youtube Vimeo Dailymotion Facebook Choose from here the video type. Video ID Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". Click on image to update the captcha. Save my name, email, and website in this browser for the next time I comment. Related Questions Find the sum of âˆ’ 5 + (âˆ’ 8) + (âˆ’ 11) + â€¦â€¦â€¦â€¦ + (âˆ’ 230). Find the sums of 34 + 32 + 30 + â€¦â€¦â€¦.. + 10. Find the sum of the A.P. 1/15, 1/12, 1/10, â€¦â€¦ , to 11 terms. Find the sum of the following AP. 0.6, 1.7, 2.8 ,â€¦â€¦.., to 100 terms. Find the sum of the following A.P. âˆ’ 37, âˆ’ 33, âˆ’ 29 ,â€¦, to 12 terms.

Solutions:(i) x^{2}â€“2x â€“8â‡’x^{2}â€“ 4x+2xâ€“8 = x(xâ€“4)+2(xâ€“4) = (x-4)(x+2)Therefore, zeroes of polynomial equation x

^{2}â€“2xâ€“8 are (4, -2)Sum of zeroes = 4â€“2 = 2 = -(-2)/1 = -(Coefficient of x)/(Coefficient of x

^{2})Product of zeroes = 4Ã—(-2) = -8 =-(8)/1 = (Constant term)/(Coefficient of x

^{2})