Question

If a+b=5 and ab=1 then calculate a?+b?. Your answer​

Answer 1

Answer:

Step-by-step explanation:

Given that,

a + b = 5 & ab= 1

a² + b² = ( a + b )² - 2ab

= ( 5 )² - 2 ( 1 )

= 25 - 2

= 23 is the answer.