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The sum of zeroes of quadratic polynomia...

The sum of zeroes of quadratic polynomial is `-sqrt2` and product is 7, that quadratic polynomial is :

A

`x^(2)-sqrt2x+7`

B

`x^(2)+sqrt2x+7`

C

`x^(2)-sqrt2x-7`

D

`x^(2)+sqrt2x-7`

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The correct Answer is:
To find the quadratic polynomial given the sum and product of its zeroes, we can follow these steps: ### Step 1: Identify the sum and product of the zeroes Given: - Sum of the zeroes (α + β) = -√2 - Product of the zeroes (αβ) = 7 ### Step 2: Write the general form of the quadratic polynomial The standard form of a quadratic polynomial based on its zeroes is given by: \[ p(x) = x^2 - (α + β)x + (αβ) \] ### Step 3: Substitute the values of the sum and product into the polynomial Substituting the known values into the polynomial: \[ p(x) = x^2 - (-√2)x + 7 \] ### Step 4: Simplify the polynomial This simplifies to: \[ p(x) = x^2 + √2x + 7 \] ### Final Result Thus, the quadratic polynomial is: \[ p(x) = x^2 + √2x + 7 \] ---

To find the quadratic polynomial given the sum and product of its zeroes, we can follow these steps: ### Step 1: Identify the sum and product of the zeroes Given: - Sum of the zeroes (α + β) = -√2 - Product of the zeroes (αβ) = 7 ### Step 2: Write the general form of the quadratic polynomial ...
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MBD -HARYANA BOARD-POLYNOMIALS-SHORT ANSWER TYPE QUESTIONS
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