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

Question

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

Answer 1

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