Please help. I put a picture to make the question more clear.
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Answer:
3/x+5
Step-by-step explanation:
4x+8/x^2+5x+6 x 3x+9/4x+20=
4(x+2)/x^2+3x+2x+6 x 3(x+3)/4(x+5)
reduce
x+2/x(x+3)(x+2) x 3(x+3)/x+5
factor expression
x+2/(x+3)(x+2) x 3(x+3)/x+5
reduce
3/x+5