Question

a square + b square = 13 and ab=6 then a+b=​

Answer 1

Answer:

25

Step-by-step explanation:

a^2+b^2= 13

(a+b)^2 -2ab =13

(a+b)^2 = 13+2(6)

(a+b)^2 = 25

a+b=5

Answer 2

Answer:

a² + b² = 13

=> (a + b)² - 2ab = 13

=> (a + b) ² - 2×6 = 13

=> (a + b) ² - 12 = 13

=> (a + b) ² = 13 + 12

=> (a + b)² = 25

=> a + b = root 25

=> a + b = 5 or - 5 ans