Question

if a+b=7 and ab=6, then a²+b² is equal to​

Answer 1

Answer:

a² + b² = (a + b) (a-b)

Step-by-step explanation:

use this formula to get ur answer!

Answer 2

Answer:

37

Step-by-step explanation:

We need to use the identity $(a+b)^2=a^2+2ab+b^2$

Given: a+b = 7, ab = 6

Putting the values given above:

$7^2=a^2+2(6)+b^2$

So, $a^2+b^2=49-12$

Hence, $a^2+b^2=37$