If α and β are the zeroes of the polynomial f(x) = 2x^2+5x+k satisfying the relation α^2+β^2+αβ=21/4

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If α and β are the zeroes of the polynomial f(x) = 2x^2+5x+k satisfying the relation α^2+β^2+αβ=21/4, then find the value of k for this to be possible.

RD SHARMA BOOK QUESTION CLASS 10
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(a+b)^2 = a^2 + b^2 + 2ab
(a+b)^2 - 2ab = a^2 + b^2 (bring +2ab at left side then it will become -2ab )

anshika_chaurasia
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Best explanation i study from your channel until 10 boards your channel is best for rd rs and all in one books important question

JHIAJA
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Ab pata chala, mera solve karne ka tarika thoda casual tha 😢😂😂

manastekade
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Sir jo 2alpha beta tha...usme se alpha beta common le toh liya apne... Par wo (2) kaha gayaa???

uniiiiTwt
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sir (x+y)²= X² y²+2xy...hota hai mtlv ans lane ke liye kuch v kroge

atozgyan
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Very simple explanation 😀 thank you sir

lucky..
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Which exercise question is this sir or worked example

sainabrinda
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The best experience and explanation than my teacher

oldsongs
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Sir 10 vi fail h isiliye nahi phda pa rha

sarthakbs
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Kis kis ko ye hona chahiye ki modiji 10th board exam cancel karde
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Chandini-ob