Question

A-b=4 and a+b=6 find a²+b² and ab

Answer 1

...a-b=4

a+b=6

→2a=10

→a=10/2 =5

we calculate b:

a-b=4

5-b=4

-b=4-5

b=1

→a=5; b=1

a²+b² = 5²+1² = 25+1 = 26

ab =5*1 = 5