Question

given that x- y = 8 xy = 5 find the value of x square + y square pls answers​

Answer 1

⟹ x-y = 8 xy =5

⟹ Apply (x - y)² = x² + y² - 2xy (Put the given values...)

⟹ 8² = x² + y² -2(5)

⟹ x² + y² = 64 + 10

⟹ x² + y² = 74