Question

If x − y = 9 and xy = 16, then find the value of x^2 + y^2

Answer 1

Answer:

The answer is 103.

Step-by-step explanation:

Given,

x-y = 9.

xy = 16.

According to the question,,

find the value of x^2 + y^2.

As we know that ,,,

(x-y)^2 = x^2 + y^2 - 2xy.

; (x-y)^2 + 2xy = x^2 + y^2.

; (9)^2 + (2×16) = x^2 + y^2.

; 81 + 32 = x^2 + y^2.

; 103 = x^2 + y^2.

Answer 2

Answer:

113

Step-by-step explanation:

Hope it will help you...