Question

a+b = √5 , a-b=√3 then (a²+b²)?​

Answer 1

this is your answer.hope it will help you

Answer 2

Answer:

hope it is helped

Step-by-step explanation:

SOLUTION

GIVEN

a + b = 5 & a - b = 3

TO DETERMINE

The value of a² - b²

FORMULA TO BE IMPLEMENTED

We are aware of the identity that

\sf{ {a}^{2} - {b}^{2} = (a + b)(a - b) }a2−b2=(a+b)(a−b)

EVALUATION

Here it is given that a + b = 5 & a - b = 3

Now

\sf{ {a}^{2} - {b}^{2} }a2−b2

\sf{ = (a + b)(a - b) }=(a+b)(a−b)

\sf{ = 5 \times 3 }=5×3

\sf{ = 15 }=15