Question

СРОЧНО ДАЮ 100 БАЛІВ!!!!!!
ДОПОМОЖІТЬ БУДЬ ЛАСКА

Answer 1

1. 25ax/10ay = 5x/2y

2. m/15-5/b = mb/15b - 75/15b = mb-75/15b

3. a-3/a+3 при a ≠ -3

4. 2p+10/p²-25 = 2(p+5) / p²-5² = 2(p+5) / (p-5)(p+5) = 2/p-5

5. 4c/c-x + 4x/x-c = 4c/c-x - 4x/c-x = 4c-4x / c-x = 4(c-x) / c-x = 4

6. a+3/a²-9 при а=-1

-1+3/(-1)²-9 = 2/1-9 = 2/-8 = - 1/4

7. 2b/b-3 + b/b+3 - 2b²/9-b² = 2b/b-3 + b/b+3 + 2b/(b-3)(3+b) = 2b(b+3) +b(b-3) +2b² / (b-3)(b+3) = 2b²+6b+b²-3b+2b² / b²-9 = 5b²+3b/b²-9

 последние 2 не знаю:((