Question

a square + b square equal to 9 and AB equal to 4 find the value of 3(a+b) square - 2(a-b) square.......​

Answer 1

Answer:

I don't know.

Please

s

didi

add me to brainlist answer.

Step-by-step explanation:

I give very much answers but no one give brainlist answer.

Please didi

Answer 2

Answer:

a²+b² = 9

ab = 4

we know that

(a+b)² = a² + b² +2ab

= 9+2(4)

= 17

a+b = root 17

we also know that

(a-b)² = a² +b² - 2ab

= 9 - 2(4)

= 1

a-b = 1

= 3(a+b)² - 2(a-b)²

= 3(root 17)² - 2(1)²

=51-2

=49

49 is the correct answer