AP EAMCET · Maths · Quadratic Equation
The set of values of \(x \in \mathbb{R}\) satisfying the inequality \(x^2-4 x-21 \leq 0\) is
- A \({[3,7]}\)
- B \({[-3,7]}\)
- C \({[-7,3]}\)
- D \({[-7,-3]}\)
Answer & Solution
Correct Answer
(B) \({[-3,7]}\)
Step-by-step Solution
Detailed explanation
\((x-7)(x+3) \leq 0\) \(x \in [-3, 7]\)
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