Question

If a+b=10 and ab=20 then a2+b2 equals
2
to
40
60
80​

Answer 1

Answer:

THE ANSWER IS 40

Step-by-step explanation:

Answer 2

Answer:

60

Step-by-step explanation:

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

So, (10)^2-2(20)

100-40=60