Question

Допоможіть будь ласка, даю 25 балів

Answer 1

Ответ:

Объяснение:

3. (a-5)/(5a) +(a-2)/a²=(a²-5a+5a-10)/(5a²)=(a²-10)/(5a²)

4. 1) (27x²-9x)/(4-12x)=(9x(3x-1))/(-4(3x-1))=-(9x)/4

2) (b²-36)/(b²-12b+36)=((b-6)(b+6))/(b-6)²=(b+6)/(b-6)

3. 1) (3x+4)/(x-3) -(x+1)/(3-x)=(3x+4)/(x-3) +(x+1)/(x-3)=(3x+4+x+1)/(x-3)=(4x+5)/(x-3)

2) (m+3)/(m²-2m) -(m-3)/(5m-10) +(m+2)/(5m)=(m+3)/(m(m-2)) -(m-3)/(5(m-2)) +(m+2)/(5m)=(5m+15-m²+3m+(m+2)(m-2))/(5m(m-2))=(8m+15-m²+m²-4)/(5m(m-2))=(8m+11)/(5m(m-2))