Smilebuffalo
Member
When we work out the solutions for absolute equations and absolute inequalities, do we have to test our solutions via substitution into the original equation?
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Preliminary Course: Absolute equations and inequalities. (1 Viewer)
- Thread starter Smilebuffalo
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FOB all the way
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- 2008
ineqalites yes you need to test
Michaelmoo
cbff...
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When you have inequalties involved, usually you have to test; especially if theres more than 1 absol value in teh equation. Although, if you do a lot of examples, you will find that certain types of questions dont need testing. You also have to test an equality like thisSmilebuffalo said:
|z+3| + |z-9| = 5
Just test evrything for now that looks complex. Good luck