Question

check out the attachment​

Answer 1

Answer: (B)

Step-by-step explanation:

The answer is (B)

x^2-6x-7=0

D= b^2-4ac( according to quadratic formula)

D= 36-4(1)(-7)

D= 36+28

D= 64

x= (-b±√D)/2a

x= (+6±√64)/2

x= (+6±8)/2

x= 7 or -1

Now sum of the roots is :- 7+(-1)=6

Difference of the roots is 7-(-1)= 7+1=8

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Answer 2

Answer:

B) x2-6x-7

Step-by-step explanation:

x=-1,7

sum=7+(-1)=6

diff=7-(-1)=8