Question

if a+b=4 and ab=3 find a²+b² please help me ​

Answer 1

Answer:

10

Step-by-step explanation:

$a = 3\\b = 1\\a+b = 3+1=4\\ab = 3*1 = 3\\a^2+b^2=3^2+1^2 = 9 + 1 = 10$