Math, asked by shivani8712, 5 months ago

find a quadratic equation whose zeroes are -1/4 and 1/4​

Answers

Answered by rakhimanikpuri48
0

Answer:

(x+1/4) (x-1/4) is the quadratic equation of the given zeroes

Answered by REDPLANET
62

\underline{\boxed{\bold{Question}}}  

Find a quadratic equation whose zeroes are -1/4 and 1/4​

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\underline{\boxed{\bold{Important\;Information}}}  

↠ Sum of roots = (-b)/a

Product of roots = c/a

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\underline{\boxed{\bold{Given}}}

First root = α = (-1/4)

↠ Second root = β = (1/4)

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\underline{\boxed{\bold{Answer}}}

Let's Start !

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Every quadratic equation can be expressed in form given below.

\boxed{\bold{\red{\leadsto x^{2} -(\alpha +\beta )x + \alpha \beta }}}

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So let's find value of α + β

:\implies \alpha  + \beta  = Sum \ of \ roots

:\implies \alpha  + \beta  = (\frac{-1}{4} ) + \frac{1}{4}

\boxed{\blue {:\implies \alpha  + \beta  = 0}}

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Now let's find value of αβ

:\implies \alpha \beta  = Product \ of \ roots

:\implies \alpha \beta  = (\frac{-1}{4} )\ \times \ (\frac{1}{4} )

\boxed{\blue {:\implies \alpha \beta  = ( \frac{-1}{16} )}}

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Now let's substitute values in the given equation.

:\implies x^{2} -(\alpha +\beta )x + \alpha \beta = 0

:\implies x^{2} -(0)x + (\frac{-1}{16} ) = 0

\red {:\implies x^{2} - \frac{1}{16} = 0}

\blue {:\implies 16x^{2} - 1 = 0}

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\boxed{\boxed{\bold{\therefore Required \; Equation = 16x^{2} - 1 = 0}}}

\boxed{\boxed{\bold{\therefore Required \; Equation = x^{2} - \frac{1}{16}  = 0}}}

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Hope this helps u.../

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