nomor 7&8 ya sama caranya jugaaa

7) y = 1 / ( 2x + 1)^1/2
y^2 = 1 / (2x+1) 
2x+1 = 1 / y^2 
x = (1/y^2 - 1)/2 
g(5) = (1/25 - 1)/2 
g(5) = -24/25 / 2 
g(5) = -12/25  A

8) Inverse 
= -2x -5 / -x +3 
inverse (4) = (( -8 -5 )/( -4 +3)) 
= 13 E