Question

Please tell the answers

Answer 1

Answer:

Step-by-step explanation:

[A + B]² = A² +B² + 2AB

A² + B² = 28

4AB = 28

AB = 28/4 = 7

2AB = 7 *2 = 14

SO A² +B² + 2AB = 28 +7 = 35

HOPE IT HELPS YOU VERY WELL

PLEASE MARK MY ANSWER AS BRAINLIEST

Answer 2

Step-by-step explanation:

a²+b²=28

4ab=28

(a+b)²=a²+b²+2ab

=28+2(28)

=28+56

=84

Please mark me as brainlest.

Please follow me.