Question

Find the value of a-b and a+b=4 and ab=3

Answer 1

Answer:

Step-by-step explanation:

(a+b)²=(4)²

a²+b²+2ab=16

a²+b²+2(3) =16

a²+b²+6=16

a²+b²=16-6=10

a²+b²=10

a²+b²-2ab=10-2ab

(a-b)²=10-2(3)

(a-b)²=10-6=4

a-b=√4=2

a-b=2