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Differentiating watch

1. Hi, I would appreciate some support on this. Got the same answer a number of times but marked incorrect.

y=2x+1+ln(4-2x)

Dy/Dx = 2 + ((1/(4-2x) x -2)

Dy/dx = 2 + (-2/(4-2x))

Dy/Dx = 2 + (-1/(2-x))

Dy/DX = (2x(2-x))/(2-x) + (-1/(2-x))

DY/Dx = (4-2x)/(2-x) + (-1/(2-x))

Dy/Dx = (3-2x)/ (2-x)
2. (Original post by John Hunt)
Hi, I would appreciate some support on this. Got the same answer a number of times but marked incorrect.

y=2x+1+ln(4-2x)

Dy/Dx = 2 + ((1/(4-2x) x -2)

Dy/dx = 2 + (-2/(4-2x))

Dy/Dx = 2 + (-1/(2-x))

Dy/DX = (2x(2-x))/(2-x) + (-1/(2-x))

DY/Dx = (4-2x)/(2-x) + (-1/(2-x))

Dy/Dx = (3-2x)/ (2-x)
That's correct.
3. (Original post by RDKGames)
That's correct.
Thanks- thought it was but doubt yourself when marked incorrect.

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