c: \(=\dfrac{y\left(x-3\right)-9\left(x-3\right)}{-\left(x-3\right)}=-y+9\)
d: \(=\dfrac{\left(3x+2-x-2\right)\left(3x+2+x+2\right)}{x^2\left(x-1\right)}\)
\(=\dfrac{2x\left(4x+4\right)}{x^2\left(x-1\right)}=\dfrac{2\left(4x+4\right)}{x\left(x-1\right)}\)
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