3 years ago

Simplify (5x+3y)^2-(5x-3y)^2-60xy

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

7 0

Answer:

hope this answer will help u.

Step-by-step explanation:

( 5x + 3y )² - ( 5x - 3y )² - 60xy

= ( 25x² + 30xy + 9y²) - ( 25x² - 30xy + 9y² ) - 60xy

= 25x² + 30xy +9y² - 25x² + 30xy - 9y² - 60xy

= 60xy - 60xy

= 0

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