Question

please solve this sum by step by step​ and i will mark as brainlist​

Answer 1

Answer:

17

Step-by-step explanation:

a+b=-7. (sum of roots=-7/1)

ab=12 (product of roots=12/1)

now,

a+b+2*a*b

=(a+b)+2*(a*b)

=(-7)+2*12

=17

Answer 2

Answer:

The answer is 17.

Step-by-step explanation:

Please check the process and the answer.

Thank you