Math, asked by abhibunny22faspbefas, 2 months ago

Write the quadratic polynomial, the sum and product of whose zeroes are -9/2 and-3/2 respectively.

Answers

Answered by RvChaudharY50
4

Given :- Write the quadratic polynomial, the sum and product of whose zeroes are -9/2 and-3/2 respectively.

Solution :-

we know that, the quadratic equation can be written as ,

  • x² - (sum of roots)x + product of roots = 0 .

we have,

  • sum of roots = (-9/2)
  • product of roots = (-3/2) .

then,

→ Required quadratic polynomial :- x² - (-9/2)x + (-3/2) = 0

→ Required quadratic polynomial :- x² + (9x/2) - (3/2) = 0

→ Required quadratic polynomial :- (2x² + 9x - 3) / 2 = 0

→ Required quadratic polynomial :- 2x² + 9x - 3 = 0 (Ans.)

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Anonymous: Great !
Answered by pulakmath007
6

SOLUTION

TO DETERMINE

The quadratic polynomial, the sum and product of whose zeroes are -9/2 and-3/2 respectively.

CONCEPT TO BE IMPLEMENTED

If the Sum of zeroes and Product of the zeroes of a quadratic polynomial is given then the quadratic polynomial is

 \sf{ {x}^{2}  -(Sum  \: of \:  the \: zeroes )x +  Product \:  of  \: the \:  zeroes }

EVALUATION

Here it is given that for the given Quadratic polynomial

 \displaystyle\sf{ Sum  \: of \:  the \: zeroes  =  -  \frac{9}{2} }

 \displaystyle\sf{   Product \:  of  \: the \:  zeroes =  -  \frac{3}{2}  }

Hence the required Quadratic polynomial is

 \displaystyle\sf{ {x}^{2}  -(Sum  \: of \:  the \: zeroes )x +  Product \:  of  \: the \:  zeroes }

 =  \displaystyle\sf{ {x}^{2}  -  \bigg( - \frac{9}{2} \bigg)x  -  \frac{3}{2}  }

 =  \displaystyle\sf{ {x}^{2}   +  \frac{9x}{2}  -  \frac{3}{2}  }

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Anonymous: Awesome!
pulakmath007: Thank you Brother
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