Question

If 6 is a zero of the polynomial x²-5x-k,then find the value of k

Answer 1

Answer:

k = 6

Step-by-step explanation:

x² - 5x - k  = 0

(6)² - 5 (6) -k  =0

36 - 30  = k

∴ k = 6

Answer 2

The value of k is 6.

Given,

6 is a zero of polynomial x²-5x-k.

To Find,

The value of k.

Solution,

Zero of a polynomial is a number that satisfies the polynomial when substituted in it.

Now, the given zero of the polynomial is 6. So when 6 will be substituted in x²-5x-k will give the result as 0.

So,

6²-5(6)-k = 0

Now, we will solve this equation

36-30-k = 0

k = 6

Hence, the value of k is 6.

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