Question

if a-b=3 and ab=40 ,find the value of (a+b)​

Answer 1

Then a minus b ka whole square equal to 35 square then a square + b square minus 2 a b equal to 9 a square + b square minus b equal to 9 a square + b square equal to 89 now a plus b ka whole square equal to a square + b square + 2 AV equal to 3 and + 8 equal to 169 then a + b equal to root 169 then a + b equal to 13

Answer 2

Then a minus b ka whole square equal to 35 square then a square + b square minus 2 a b equal to 9 a square + b square minus b equal to 9 a square + b square equal to 89 now a plus b ka whole square equal to a square + b square + 2 AV equal to 3 and + 8 equal to 169 then a + b equal to root 169 then a + b equal to 13