Answer:
9x^2+22x-2
Step-by-step explanation:
f(g(x))=(3x+1)^2+2(3x+1)-4
=9x^2+16x+6x+2-4
=9x^2+22x-2
to find the soultion of mentioned question you have to put the value of g(x) into f(x) and then solve it like normal ...
60%=6/10
Hope this helps please mark this as brainliest answer

Length of the room is 5 m and width is 5 + 2 = 7 m.
Hope this helps.
r3t40
Answer:
a
Step-by-step explanation: