Question

A-b =4 and ab =45 what is vale of (a+b)2

Answer 1

A*B = 45
Then factors of a and b 1,3,5,9,15,45
A-B = 5
9*5 =45
9-5 =4

(a+b)2=(9+5)2 =14*2 =28
Hence 28 is the answer thanks for asking