Question

if a+y =6 and ay=16 find the value of a-y​

Answer 1

EXPLANATION.

⇒ a + y = 6. - - - - - (1).

⇒ ay = 16. - - - - - (2).

As we know that,

Formula of :

⇒ (x - y)² = (x + y)² - 4xy.

Using this formula in the equation, we get.

⇒ (a - y)² = (a + y)² - 4ay.

⇒ (a - y)² = (6)² - 4(16).

⇒ (a - y)² = 36 - 64.

⇒ (a - y)² = - 28.

⇒ (a - y) = √-28.

⇒ (a - y) = √28 x √-1.

⇒ x = ±√-1 is an imaginary and √-1 = i(iota).

⇒ (a - y) = √28i.

Answer 2

Hope this will help you Buddy