Question

(5m + 3n)(5m - 3n) =​

Answer 1

Answer:

25m² - 9n²

Step-by-step explanation:

(5m + 3n)(5m - 3n)

(a+b) (a-b) = a² - b²

here, a= 5m ; b= 3n

= (5m)² - (3n)²

= 25m² - 9n²

    Hope it is helpful. Take care.

Answer 2

Answer:

25m^2-9n^2

Step-by-step explanation:

when we multiply (5m+3n)(5m-3n) we will get 25m^2-15mn+15mn-9n^2

therefore, the ans is 25m^2-9n^2