the sum of zeros of 8 x square minus kx + 1 is equal to -1 then what is K in
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Answers
Answered by
59
Given :-
- Sum of zeros of Polynomial 8x² - kx + 1 is (-1) .
To Find :-
- Value of k ?
Concept used :-
→ The sum of the roots of the Equation ax² + bx + c = 0 , is given by = (-b/a)
and ,
→ Product of roots of the Equation is given by = c/a.
Solution :-
Comparing we get :-
→ a = 8
→ b = (-k)
→ c = 1
So,
→ sum of zeros = (-b/a) = -(-k)/8 = (k/8)
Now, given that, sum is (-1) .
So,
→ (k/8) = (-1)
→ k = (-8) (Ans).
Hence, value of k will be (-8).
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Answered by
31
Answer:
k= -8
Step-by-step explanation:
The provided pic is the correct explanation.
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