Question

Срочно!!!!!!! Помогите пожалуйста решить срочно прошу срочно

Answer 1

Privet, otvet snuzy

Объяснение:

1

1.  5b/14 + 9b/14= 5b+9b/14= 14b/14= b

2.9m/7n - 2m/7n= 9m-2m/7n=7m/7n=m/n

3. 5x-3y/8z - 3x-13y/8z= 5x-3x+13y-3y/8z= 2x+10y/8z

4. 4c-3d/cd - c-3d/cd= 4c-c+3d-3d/cd=3c/cd= 3/d

5. 6x/x`2-16 - 24/x`2-16= 6x-24/x`2-16= 6(x-4)/(x-4)(x+4)=6/x+4

6. m`2+10m/9-m`2 - 4m-9/9-m`2= m`2+10m-4m+9/9-m`2=m`2+6m+9/9-m`2=(m+3)`2/(3-m)(3+m)=m+3/m-3

2.

1. a-2/a-1 - 1/1-a= a-a-2/a-1=-2/a-1

2. 3y+7/4-y + y+15/y-4= 3y+7/4-y - y+15/y-4 = 3y-y-15+7/4-y = 2y - 8/-(4-y)=

=-2

3. (2a+1)`2/3a-6 + 2a`2 + 4a +9/ 6-3a = (2a+1)`2/3a-6 - 2a`2 + 4a + 9/3a-6=

4a`2-2a`2+4a-4a-9+1/3a-6= 2a`2-8/3a-6

4.25-3x/(x-5)`2 - 7x-x`2/(x-5)`2 = 25-7x-3x-x`2 / (x-5)`2 = 25-10x-x`2 / (x-5)`2