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Accedmychevron_right11thchevron_rightmathchevron_rightTheory Of Quadratic Functionschevron_rightExercise 3.2

Key ideas

  • For rational equations, multiply by the LCM to clear denominators, but keep domain restrictions.
  • For radical equations, isolate a radical then square; after solving, substitute back to remove extraneous roots.

Useful facts:

If A=B then A=B2 and we must have B≥0.\text{If }\sqrt{A}=B\text{ then }A=B^2\text{ and we must have }B\ge 0.
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Exercise 3.1