If the sum of zero of the polynomial f(x) = x2 - 8x + k where x = 2, find k
Answers
Answered by
2
Answer:
Step-by-step explanation: f{x} = x2 - 8x +k
= 2 x 2 - 8 x 2 + k
= 4 - 16 + k
- 12 + k = 0
k = 0 + 12
k = 12
Answered by
3
Correct question :-
If the sum of zero of the polynomial f(x) = x² - 8x + k where x is 2, find the value of k
Answer:
12
Explanation:
Given :
- Polynomial f(x) = x² - 8x + k and x is equal to 2
To Find :
- The value of k.
Solution :
f(x) = x² - 8x + k
[putting x = 2]
⇒ 2² - 8(2) + k = 0
⇒ 4 - 16 + k = 0
⇒ -12 + k = 0
∴ k = 12
Therefore,the value of k = 12
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