Math, asked by hyunjin20, 8 months ago

If a+b=7, ab=12 a^2+b^2​

Answers

Answered by Aksh255
2

Step-by-step explanation:

a^2+b^2=(a+b)^2-2ab

=7^2-24

=49-24

=25

Answered by ashauthiras
1

Answer:

13

Step-by-step explanation:

A + b =

7ab

= 12a^2 - ab + b^2

= a^2 + b^2 + 2ab - 3ab

= (a + b)^2 - 3ab

= (7)^2 - 3 x 12

= 49 - 36

= 13

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