Question

x+y=6xy=8 then x-y=? ,x-y is not given

Answer 1

Heya

x - y = √{(x + y )² -4xy }

=>

x - y = √{(8)² - 8×4/6 }

=>

x - y = √{ 64 - 32/6}

=>

x - y = 4√2 { √{ 2 - 1/6 } }

=>

x - y = 4√2 { √(11/6) }