What is the quadratic polynomial whose sum and the product of zeros is root 2 half respectively?

Sum of the zeroes = -3/2√5x

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Product of the zeroes = – ½

P(x) = x2 – (sum of the zeroes) + (product of the zeroes)

Then, P(x)= x2  -3/2√5x – ½

P(x)= 2√5x2 – 3x – √5

Using splitting the middle term method,

2√5x2 – 3x – √5 = 0

2√5x2 – (5x – 2x) – √5 = 0

2√5x2 – 5x + 2x – √5 = 0

√5x (2x – √5) – (2x – √5) = 0

(2x – √5)(√5 – 1) = 0

⇒ x = – 1/√5, √5/2

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    Step 1: Solve for equation of the quadratic polynomialGiven,Sum of zeros =-83Product of zeros=43We know that, the equation of the quadratic polynomial can be written as,x2-(sum of zeros)+(product of zeros)=0∴x2--83x+4 3=0⇒3x2+8x+ 4=0Step 2: Factorize the polynomial3x2+8x+4=0⇒x3x+2+23x +2=0⇒x+23x +2=0⇒ x=-2,-23Hence, the zeroes of the given polynomial are -2,-23Find a quadratic polynomial, the sum and product of whose zeroes are √2 and -3/2, respectively. Also find its zeroesWhat is the quadratic polynomial whose sum and product of zeroes is √ 2 1 3 respectively?What is the quadratic polynomial whose sum and the product of zeroes is √ 2 3 respectively?What is the quadratic polynomial whose sum of zeros is by 2 and product of zeros is?What is the quadratic equation if the sum of roots is 2 and product of roots is 5?

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Given:

The sum of roots = -3

The product of roots = 2

Concept used:

The sum of roots of quadratic equation = -b/a

The product of roots = c/a

Calculation:

The quadratic polynomial is in the form of 

P(x) = ax2 + bx + c

According to the question

Sum of roots = -3

⇒ -b/a = -3 

Product of roots = 2

⇒ c/a = 2

⇒ a = 1, b = 3 and c = 2

The quadratic polynomial wiil be 

P(x) = x2 + 3x + 2

∴ The required quadratic polynomial is x2 + 3x + 2.

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Solution

Step 1: Solve for equation of the quadratic polynomialGiven,Sum of zeros =-83Product of zeros=43We know that, the equation of the quadratic polynomial can be written as,x2-(sum of zeros)+(product of zeros)=0∴x2--83x+4 3=0⇒3x2+8x+ 4=0Step 2: Factorize the polynomial3x2+8x+4=0⇒x3x+2+23x +2=0⇒x+23x +2=0⇒ x=-2,-23Hence, the zeroes of the given polynomial are -2,-23

This answer was edited.

The General form of a quadratic polynomial whose Sum of roots and products of roots is given :

x2- ( Sum of roots) x + ( Product of roots ) =0

In the above question,
Sum of roots =√2​
Product of roots =1/3.

Now, The quadratic polynomial
x²−√2​x+1/3=0
3x²−3√2​x+1=0

Required polynomial is 3x²−3√2​x+1

Solution:

Given, the sum of two zeros are 2.

Product of two zeros is -3/2.

We have to find the quadratic polynomial and its zeros.

A quadratic polynomial in terms of the zeroes (α,β) is given by

x2 - (sum of the zeroes) x + (product of the zeroes)

i.e, f(x) = x2 -(α +β) x +αβ

Here, sum of the roots, α +β = √2

Product of the roots, αβ = 3/2

So, the quadratic polynomial can be written as x² - √2x - 3/2.

The polynomial can be rewritten as (1/2)[2x² - 2√2x - 3].
Let 2x² - 2√2x - 3 = 0

On factoring the polynomial,

2x² + √2x - 3√2x - 3 = 0

√2x(√2x + 1) - 3(√2x + 1) = 0

(√2x - 3)(√2x + 1) = 0

Now, √2x - 3 = 0

√2x = 3

x = 3/√2

Also, √2x + 1 = 0

√2x = -1

x = -1/√2

Therefore, the zeros of the polynomial are -1/√2 and 3/√2

✦ Try This: Find a quadratic polynomial, the sum and product of whose zeroes are 2 and 3/2, respectively. Also find its zeroes

☛ Also Check: NCERT Solutions for Class 10 Maths Chapter 2

NCERT Exemplar Class 10 Maths Exercise 2.4 Solved Problem 1

Find a quadratic polynomial, the sum and product of whose zeroes are √2 and -3/2, respectively. Also find its zeroes

Summary:

A quadratic polynomial whose sum and product of zeroes are √2 and 3/2 is x² - √2x + 3/2= 0. The zeros of the polynomial are -1/√2 and 3/√2

☛ Related Questions:

    -8/3, 4/3 find a quadratic polynomial whose sum and product respectively of the zeroes are as given. . . . . 21/8, 5/16 find a quadratic polynomial whose sum and product respectively of the zeroes are as given . . . . -2√3, -9 find a quadratic polynomial whose sum and product respectively of the zeroes are as given. . . . .

Sum of zeroes = α + β =√2

Product of zeroes = α β = 1/3

∴ If α and β are zeroes of any quadratic polynomial, then the quadratic polynomial equation can be written directly as:-

x2–(α+β)x +αβ = 0

x2 –(√2)x + (1/3) = 0

3x2-3√2x+1 = 0

Thus, 3x2-3√2x+1 is the quadratic polynomial.

What is the quadratic polynomial whose sum and product of zeroes is √ 2 1 3 respectively?

NCERT Solutions Class 10 Mathematics Solutions for Polynomials - Exercise 2.2 in Chapter 2 - Polynomials. Find a quadratic polynomial of √2, 1/3 as the sum and product of its zeroes respectively. Thus, 3x2-3√2x+1 is the quadratic polynomial.

What is the quadratic polynomial whose sum and the product of zeroes is √ 2 3 respectively?

p(x)=x2−2 x+3.

What is the quadratic polynomial whose sum of zeros is by 2 and product of zeros is?

⇒ x² - 2x - 8.

What is the quadratic equation if the sum of roots is 2 and product of roots is 5?

∴x2−2x+5=0 is the quadratic equation. Tải thêm tài liệu liên quan đến nội dung bài viết What is the quadratic polynomial whose sum and product of zeros is root 2 1 by 3 respectively?

What is the quadratic polynomial whose sum and the product of zeros is root 2 half respectively?

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What is the quadratic polynomial whose sum and the product of zeroes is √ 2 1 3 respectively?

NCERT Solutions Class 10 Mathematics Solutions for Polynomials - Exercise 2.2 in Chapter 2 - Polynomials. Find a quadratic polynomial of √2, 1/3 as the sum and product of its zeroes respectively. Thus, 3x2-3√2x+1 is the quadratic polynomial.

What is the quadratic polynomial whose sum and the product of zeros is root 2 and half respectively?

Hence, the required polynomial is 2x² - 2√2x -3.

What is the quadratic polynomial whose sum and the product of zeroes is root 2?

f(x) = 0 rArr (x-3sqrt2)(x+2sqrt2) = 0`
` rArr x -3sqrt2 = 0 or x + 2 sqrt2 = 0`
` rArr x = 3 sqrt2 or x =- 2sqrt2. `
Hence, the required polynomial is ` f(x) = x^(2) - sqrt2x - 12` whose zeros are `3sqrt2 and -2sqrt2.

What is the quadratic equation if the sum of roots is 2 and product of roots is 5?

x2−2x+5=0 is the quadratic equation.