95.6k views
5 votes
If a= -5, what is the value of a^2-4/a+2

If a= -5, what is the value of a^2-4/a+2-example-1
User Tasha
by
5.0k points

1 Answer

5 votes

Answer:

-7

Step-by-step explanation: When a= 5, let's substitute all a's with 5 in the expression:


(a^(2)-4 )/(a+2)\\((-5)^(2)-4 )/(-5+2)\\\\(25-4)/(-3)\\(21)/(-3) \\= -7

User Florent Poujol
by
4.6k points