`b) |x^2 - 4x - 5| = 4x - 17`
`<=>` \(\left[ \begin{array}{l}x^2 - 4x - 5 = 4x - 17\\x^2 - 4x - 5 = 17 - 4x\end{array} \right.\)
`<=>` \(\left[ \begin{array}{l}x^2 -8x + 12 = 0\\x^2 = 12\end{array} \right.\)
`<=>` \(\left[ \begin{array}{l}x = 6\\x = 2\\x=±2\sqrt{3}\end{array} \right.\)
`e) x^2 - 3x + 2 = |x + 2|`
`<=>` \(\left[ \begin{array}{l}-x^2 + 3x - 2 = x + 2\\x^2 - 3x + 2 = x + 2\end{array} \right.\)
`<=>` \(\left[ \begin{array}{l}x^2 - 2x + 4 = 0 (l)\\x(x - 4) = 0\end{array} \right.\)
`<=>` \(\left[ \begin{array}{l}x = 0\\x = 4\end{array} \right.\)
`h) |x^2 - 3x| = x^2 - x`
`<=>` \(\left[ \begin{array}{l}x^2 - 3x = x^2 - x\\x^2 - 3x = x - x^2\end{array} \right.\)
`<=>` \(\left[ \begin{array}{l}2x = 0\\2x^2 - 4x = 0\end{array} \right.\)
`<=>` \(\left[ \begin{array}{l}x = 0\\2x(x - 2) = 0\end{array} \right.\)
`<=>` \(\left[ \begin{array}{l}x = 0\\x = 2\end{array} \right.\)
