Find the quadratic polynomial, the sum of whose zeros is 0 and their product is -1. Hence, find the zeros of the polynomial.

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Find the quadratic polynomial, the sum of whose zeros is 0 and their product is -1. Hence, find the zeros of the polynomial.
Maths Class 10
Polynomials

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Eva

2 thoughts on “Find the quadratic polynomial, the sum of whose zeros is 0 and their product is -1. Hence, find the zeros of the polynomial.<br />”

  1. [tex] \tt{\huge{\pink{Hello!!! }}}[/tex]

    Question :

    Find the quadratic polynomial the sum of whose zeros is 0 and their product is -1 hence, find the zeros of the polynomial.

    Solution :

    [tex]\tt{\red{Given \: – }}[/tex]

    Sum of Zeroes = 0

    Product of Zeroes = -1

    A Quadratic Polynomial can be expressed as :

    [tex]\tt{ \purple{ \implies{ {x}^{2} – (sum \: of \: zeroes) + (product \: of \: zeroes) }}}[/tex]

    Hence The required Polynomial becomes :

    [tex]\tt{ \orange{ \implies{ {x}^{2} – 0x – 1 = > {x}^{2} – 1}}}[/tex]

    Factoring The Above Expression :

    [tex]\tt{\green{\implies{ (x-1)(x+1) }}}[/tex]

    The Required Zeroes are 1 and -1.

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  2. Answer:

    Let the zeroes be α and β

    Given α + β = 0

    αβ = -1

    The quadratic polynomial is x² – Sx + P

    where S = α + β

    and P = αβ

    The polynomial is x² – (0)x + (-1)

    or x² -1

    The zeroes of this polynomial can be found by equating the expression to 0.

    x² – 1 = 0

    or x² = 1

    or x = ±1

    Do mark as brainliest if it helped!

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