Practice problem
Solve ∣2x−9∣≤8|2x-9|\leq8∣2x−9∣≤8.
(−∞,12 ]∪[172 ,∞)(-\infty,\frac{1}2\ ]\cup[\frac{17}2\ ,\infty)(−∞,21 ]∪[217 ,∞)
(−∞,12 )∪(172 ,∞)(-\infty,\frac{1}2\ )\cup(\frac{17}2\ ,\infty)(−∞,21 )∪(217 ,∞)
[12 ,172 ][\frac{1}2\ ,\frac{17}2\ ][21 ,217 ]
(12 ,172 )(\frac{1}2\ ,\frac{17}2\ )(21 ,217 )
Type a concept, like “slope” or “photosynthesis”.
