Solving Inequalities Involving |x+2| & |x2 -3ax+2a2|

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SUMMARY

The discussion focuses on solving the inequality |x² - 3ax + 2a²| < |x² + 3a - a²| for real values of x, where a is a non-zero constant. Additionally, it addresses the conditions under which the equation |x + 2| = ax + 4 has two distinct real roots and provides methods for solving the inequality |x + 2| < ax + 4. The participants emphasize the importance of showing progress in problem-solving to facilitate effective assistance.

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  • Understanding of absolute value inequalities
  • Familiarity with quadratic equations
  • Knowledge of sketching functions and analyzing their intersections
  • Basic algebraic manipulation skills
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  • Study the properties of absolute value functions in inequalities
  • Learn how to sketch quadratic functions to determine root conditions
  • Explore the concept of discriminants in quadratic equations for root analysis
  • Investigate the implications of parameter a on the behavior of the inequalities
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A Level mathematics students, educators teaching algebra and inequalities, and anyone seeking to deepen their understanding of solving inequalities involving absolute values and quadratic expressions.

A Level Student
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1) Solve for x, in terms of a, the inequality |x2 -3ax + 2a2| < |x2 +3a - a2| where x is real . a is not 0.
2ai) By means of a sketch or otherwise, state the range of values of a for which the equation |x+2| = ax + 4 has 2 distinct real roots.
2aii)Solve the inequality |x+2| < ax + 4.
 
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Hello A Level Student and welcome to MHB! :D

We ask that our users show their progress (work thus far or thoughts on how to begin) when posting questions. This way our helpers can see where you are stuck or may be going astray and will be able to post the best help possible without potentially making a suggestion which you have already tried, which would waste your time and that of the helper.

Can you post what you have done so far?
 

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