Question

solve this attached file​

Answer 1

Answer:

Hi friends

Step-by-step explanation:

13 is the answer

Answer 2

Step-by-step explanation:

D) 13 IS THE RIGHT ANSWER.

(a+b)^2=    a^2+b^2+2ab

 (7)^2   =    a^2+b^2+2.12

 49-24 =   a^2+b^2

now

a^2+b^2-ab

25-12

13.

PLEASE MARK AS THE BRAINLIEST ANSWER.