Answer and Explanation
Your Answer is
Correct Answer is G
Explanation
Examine the formula for the difference of squares. a2-b2=(a+b) (ab)=9 (a+b )=81 so a+b=9. Desired a=9 < /p>
Your Answer is
Correct Answer is G
Explanation
Examine the formula for the difference of squares. a2-b2=(a+b) (ab)=9 (a+b )=81 so a+b=9. Desired a=9 < /p>