Question

Please help!! I don't understand this​

Answer 1

Explanation:

(f○g)(-3)

= f(g(-3))

g(-3) =

`(2)/(2( - 3) - 1)`

g(-3) = -2/7

f(-2/7) = (-2/7)^2 + 2(-2/7) -4

= 4/49 - 4/7 - 4

= 4/49 - 28/49 - 196/49

= -220/49

please check again ^-^