How do you solve # 3 abs( x + 5 ) < 21 #?
2 Answers
Apr 29, 2015
Solution
It has two solutions
Either
Or
Solving (i)
Now, on solving (ii)
Apr 29, 2015
We can divide both sides by 3 to get
This tells us that
To verify your answer , choose appropriate values of
- Say
#x = -10#
Left hand side =
- Say
#x = 1#
Left hand side =