Hello,
The value of k is 6.
Explanation
1. Understand the Formula
For any quadratic polynomial in the standard form ax² + bx + c, the product of its zeroes (roots) is given by the formula:
Product of the zeroes = c/a
2. Identify the Coefficients
First, let's identify the values of a, b, and c from your given polynomial:
p(x) = 2x² - 3x + k
Comparing this to the standard form, we have:
• a = 2
• b = -3
• c = k
3. Set Up the Equation
The problem states that the product of the zeroes is 3.
Using the formula, we know the product of the zeroes is also c/a. So, we can set up the following equation:
c/a = 3
4. Solve for k
Now, substitute the values of 'a' and 'c' from the polynomial into the equation:
k/2 = 3
To find k, multiply both sides of the equation by 2:
k = 3 * 2
k = 6
Therefore, the value of k is 6.
Question : If $x+y+z = 9$, then the value of $(x−4)^3+(y−2)^3+(z−3)^3−3(x−4)(y−2)(z−3)$ is:
Option 1: 6
Option 2: 9
Option 3: 0
Option 4: 1
Question : The LCM of (x2 − 8x + 15) and (x2 − 5x + 6) is:
Option 1: (x − 2) (x − 3) (x − 5)
Option 2: (x − 6)2 (x + 1) (x − 3)
Option 3: (x − 6) (x + 1) (x − 3)
Option 4: (x + 6) (x + 1) (x − 3)
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