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If the zero of the polynomial x2 + px +q and double of the zero of 2x2 - 5x-3 respectively find values of p and q?

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7 answers

  1. 2x2 - 5x - 3
    2x2 - 6x +1x -3
    2x (x - 3) +1 (x - 3)
    (x - 3) (2x+1)
    x = 3, x = -1/2
    so, zeroes of x2 +px+q are 2*3 = 6 and 2 * -1/2 = -1
    let the zeroes be a = 6 and b = -1
    a+b = -coefficient of x/coefficient of x2
    6 + (-1) = -p/1
    5 = -p
    p = -5
    a*b = constant term/coefficient of x2
    6 * (-1) = q/1
    q = -6

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  2. Nice thanks 4 hlp

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  3. Thanks....for giving answer of this question...:.this was really very helpful..😌😌😌😌😌

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  4. Good

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  5. Thnku

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  6. Good

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  7. It is very helpful for meπŸ‘πŸ‘πŸ‘πŸ‘πŸ‘

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