Выполните выражение:Срочно!
1) (1/3a-1/2b)*(1/3a+1/2b)
2) (0,2a-0,5b)*(0,2a+0,5b)
3) (a²-b²)*(a²+b²)
4) (5x²-3y)*(5x²+3y)
5) (3mn+1)*(3mn-1)
6) (4pq+3)*(3-4pq)
1) (1/3a-1/2b)*(1/3a+1/2b)
2) (0,2a-0,5b)*(0,2a+0,5b)
3) (a²-b²)*(a²+b²)
4) (5x²-3y)*(5x²+3y)
5) (3mn+1)*(3mn-1)
6) (4pq+3)*(3-4pq)
Answers & Comments
2) 0.04a²-0.25b²
3)
4)
5) 9m²n²-1
6) 9-16p²q²