Questions Archive - Page 5 of 264

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mehakNewbie

Asked: June 28, 2023In: CBSE

3. In the following, determine the set of values of k for which the given quadratic equation has real roots: (i) 2×2 + 3x + k = 0

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

Find the roots of the following quadratic equations (if they exist) by the method of completing the square. 3. 3×2 + 11x + 10 = 0

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

Find the roots of the following quadratic equations (if they exist) by the method of completing the square. 1. x2 – 4√2 x + 6 = 0

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

4. Find the roots of equation 9×2 – 3x – 2 = 0.

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Explain, how did we split the number in the equation. How to find the roots? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

Solve the following quadratic equation by factorisation: 1. (x – 4)(x + 2) = 0

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Explain, how did we split the number in the equation. How to factorise? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

2. In each of the following, determine whether the given values are solutions of the given equation or not: (i) x2 – 3x + 2 = 0 , x = 2 , x = – 1

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

2. In each of the following, determine whether the given values are solutions of the given equation or not: (v) 2×2 – x + 9 = x2 + 4x + 3, x = 2, x = 3

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

3. A cottage industry produces a certain number of toys in a day. The cost of production of each toy (in rupees) was found to be 55 minus the number of articles produced in a day. On a particular day, the total cost of production was Rs. 750. If x denotes the number of toys produced that day, form the quadratic equation to find x.

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

2. John and Jivani together have 45 marbles. Both of them lost 5 marbles each, and the product of the number of marbles they now have is 128. Form the quadratic equation to find how many marbles they to start with, if John had x marbles.

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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mehakNewbie

Asked: June 28, 2023In: CBSE

1. Which of the following are quadratic equations? (i) x2 + 6x – 4 = 0. (ii) √3×2 – 2x + 1/2 = 0

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Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

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