A hint to get started
Check a repeated root and include isolated equality solutions
Solve (i) and (ii) .
CJC · Lecture · Example 2
Mark critical values and decide which are allowed before selecting intervals.
Read the worked solution
A hint to get started
Solve (i) (x−1)(x+1)(x+3)2>0 and (ii) (x−1)(x+1)(x+3)2≤0.
CJC · Lecture · Example 2
Mark critical values and decide which are allowed before selecting intervals.