Question

Simplify: (1.5m – 4n)(1.5m + 4n + 3) – (4.5m + 12n)​

Answer 1

Answer:

2.5

8.5

16.5

Step-by-step explanation:

add the all answer

answer is

28.5

Answer 2

Answer:

( 1,5m - 4n )( 1,5m + 4n + 3 ) - ( 4,5m + 12n ) = 2,25m² + 6mn + 4,5m - 6mn - 16n² - 12n - 4,5m - 12n = 2,25m² - 16n² - 24n