3 years ago

What is the zeros for the equation f(x) =

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

6 0

Answer:

B. and E.

Step-by-step explanation:

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Step-by-step explanation:

We are given $\alpha$ and $\beta$ are zeros of the polynomial $x^2-(k+6)x+2(2k-1)$ .

We want to find the value of $k$ if $\alpha+\beta=\frac{1}{2}$ .

Lets use veita's formula.

By that formula we have the following equations:

$\alpha+\beta=\frac{-(-(k+6))}{1}$ (-b/a where the quadratic is ax^2+bx+c)

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Let's solve this for k:

Subtract 6 on both sides:

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Find a common denominator:

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