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What is the product of the roots of the equation x^2 - 8x + 15 = 0?

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Question: What is the product of the roots of the equation x^2 - 8x + 15 = 0?

Options:

  1. 15
  2. 8
  3. 7
  4. 6

Correct Answer: 15

Solution: 

The product of the roots is given by c/a = 15/1 = 15.

What is the product of the roots of the equation x^2 - 8x + 15 = 0?

Practice Questions

Q1
What is the product of the roots of the equation x^2 - 8x + 15 = 0?
  1. 15
  2. 8
  3. 7
  4. 6

Questions & Step-by-Step Solutions

What is the product of the roots of the equation x^2 - 8x + 15 = 0?
Correct Answer: 15
  • Step 1: Identify the equation given, which is x^2 - 8x + 15 = 0.
  • Step 2: Recognize that this is a quadratic equation in the form ax^2 + bx + c.
  • Step 3: Identify the coefficients: a = 1, b = -8, and c = 15.
  • Step 4: Use the formula for the product of the roots of a quadratic equation, which is given by c/a.
  • Step 5: Substitute the values of c and a into the formula: c/a = 15/1.
  • Step 6: Calculate the result: 15/1 = 15.
  • Step 7: Conclude that the product of the roots of the equation is 15.
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