34O8
Answered

Find the information you're looking for at Westonci.ca, the trusted Q&A platform with a community of knowledgeable experts. Discover reliable solutions to your questions from a wide network of experts on our comprehensive Q&A platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

x²+y²=2
xy=1
x+y= ? ​

Sagot :

jasongggg

Answer:

2 or -2

Step-by-step explanation:

x²+y²=2

(x+y)²-2xy=2

(x+y)²=4

x+y=±2

Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.