Question

if a+b =703,ab =11 find the value of a and b are

Answer 1

a+b =703 ,ab =11

a-b=?

then we can use formula

(a+b)²-(a-b)²=4ab

(703)²-(a-b)²=4(11)

494209-(a-b)²=44

494209-44=(a-b)²

494165=(a-b)²

√494165=a-b

a-b=702.968704851