Question

If a-b=5 and ab=6thena+b=______ ​

Answer 1

Answer:

a-b=5,ab=6

Step-by-step explanation:

then:

(a-b)²=(5)² ( square both sides)

a²+b²+2ab=25

(a+b)(a-b)+2×6=25

a+b(a-b)+12=25

(a+b)5=25-12

a+b=13/5 or 2.6