Question

Solve the inequality below.

f2−9>−5

Answer 1

f>2 or you could do f<-2

Explanation:

f^2−9>−5

Add 9 to each side

f^2−9+9>−5+9

f^2 >4

f>2 or f<-2

Answer 2

f>2 or f<-2

Explanation:

f^2−9>−5

Add 9 to each side

f^2−9+9>−5+9

f^2 >4

Take the square root of each side, remembering to flip the sign of the inequality for the negative

f>2 or f<-2