What is the solution of the quadratic inequality ?
Answer and explanation
Correct answer: A. or
- Step 1: Factor the quadratic: boundary roots are and .
- Step 2: Since the parabola opens upward (), the quadratic expression is strictly positive outside the roots.
- Step 3: The solution set is or .
Answer
or .
Why not the others: '' is the solution to ; ' or ' factors with inverted signs as ; '' combines both sign and inequality inversion.
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