Question

If a-b=15 and ab=12, find the value of (a²+b²) plz answer in detail ​

Answer 1

Step-by-step explanation:

It's easy use the formula (a+b)^2 .

Answer 2

formula:

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

given:

a-b=15

ab=12

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

(15)^2 = a^2+b^2 -2 (12)

225=a^2+b^2-24

225+24=a^2+b^2

249=a^2+b^2

=) a^2+b^2=249