Question

If x + y = 8; xy = 12, then x² + y² =

Answer 1

Answer:

Given That

x + y = 8

xy = 12

Step-by-step explanation:

x² + y² = (x + y)^2 - 2xy

x² + y² = 8² - 2(12)

x² + y² = 64 - 24

x² + y² = 40