СРОЧНОООО!!!!!!!!!!!!!!!!!
Сократите дробь:
1) a^2-7/ a-√7
2) b+√3/ 3-b^2

1) (a²-7)/(a-√7)=((a-√7)(a+√7))/(a-√7)=a+√72) (b+√3)/(3-b²)=-(b+√3)/(b²+3)=-(b+√3)/(b+√3)²=-1/(b+√3)