Question

multiply (5y+3x) (5y-3x)​

Answer 1

Answer:

Step-by-step explanation:

Given that,

(5y+3x ) (5y - 3x )

= (5y )² - (3x)² ( ∵ (a - b ) (a +b ) = a ² - b ² )

= (5² × y²) - (3² × x²)

= 25 × y² - 9 × x²

= 25y² - 9x² is the answer.