Question

if a+b=5 and ab=6, find a²+b²​

Answer 1

Answer:

answer:13

Step-by-step explanation:

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

here a+b=5

and ab=6

now,

(5)^2=a^2+b^2+2(6)

25-12= a^2+b^2

the ans is 13