Question

Помогите пожалуйста!!!!!!!!

Answer 1

№1

1. 14m⁴cn₅/35mc⁶n⁶=2m³/5c⁵n
2. 36х³/у²*9х⁶у=1/х²у³
3. 8(m+n)*5a²/a²(m-n)(m+n)=40a²/m-n
4. (3x-15)*(3x+12)/(x-4)*(x²-25)=3(x-5)*3(x+4)/(x-4)*(x-5)(x+5)= -(9/х+5)