Discover answers to your questions with Westonci.ca, the leading Q&A platform that connects you with knowledgeable experts. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.
Sagot :
Answer:
5xy = - 13645
Step-by-step explanation:
Note that
(x - y)² = x² + y² - 2xy
Given
2x² + 2y² = 36 ( divide through by 2 )
x² + y² = 18
Then
(x- y)² = 74² = 5746 ← expand left side
x² + y² - 2xy = 5746 ← substitute x² + y² = 18
18 - 2xy = 5746 ( subtract 18 from both sides )
- 2xy = 5458 ( divide both sides by - 2 )
xy = - 2729
Thus
5xy = 5 × - 2729 = - 13645
Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.
