Question

plz any one answer fastly friends​

Answer 1

Answer:

Step-by-step explanation:

The zero of the quadratic equation is

Alpha or beta normally so I will denote one as 'm' and other as n

Therefore,

We know that,

m=2n

So,m+n=-b/a

Here b is -5 and a is 2

So,m+n=-(-5)/2

So,m+n=5/2

But m=2n

Therefore, 2n+n=5/2

3n=5/2

n=5/6

So,m=2n

m=2×5/6

m=5/3

Now, we know that m×n=c/a

Here,c is -(2k+1)

So, m×n= -(2k+1)/2

So,5/3×5/6=-(2k+1)/2

So,25/18=-(2k+1)/2

So,25×2/18=-(2k+1)

So,25/9=-2k-1

So,2k+1=-25/9

So,2k=-25/9-1

So,2k=-25-9/9

So,2k=-34/9

So,k=-34/9×2

So,k=-17/9

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