Find k, if equation 2x2 – x + k = 0 has equal roots.
Answers
Answered by
4
Answer:
2×2-x+k=0
let x =1
4-1+k=0
3+k=0
k=0-3
k:-3
Step-by-step explanation:
0kk bhai
Answered by
15
SOLUTION:-
Answer
• k= 1/8
Given
• Quadratic equation = 2x²-x+k=0
To Calculate
• Value of k
Explanation
The Given equation is 2x²-x+k=0
This is of the form of ax²+bx+c=0
Where
a = 2
b = -1
c = k
We know that,
☆ D = b²-4ac ☆
Putting values
➡️ (-1)²-4×2×k
➡️ 1- 8k
For real and equal roots
We much have,
D = 0
➡️ D= 0
➡️ 1-8k=0
➡️ -8k=-1
➡️ k= -1/-8
➡️ k= 1/8
Hence,
• 1/8 are the required value of k
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