What is the solution set of the quadratic inequality?

asked Feb 28, 2020 56.5k views

3 votes

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4 votes

Answer: the answer is A

Explanation:

Mohit Uprim answered Mar 1, 2020

4.9k points

1 vote

Answer:

$\large\boxed{\\ -\sqrt5\leq x\leq\sqrt5\}$

Explanation:

$x^2-5\leq0\qquad\text{add 5 to both sides}\\\\x^2\leq5\iff x\leq\sqrt5\ \wedge\ x\geq-\sqrt5\Rightarrow-\sqrt5\leq x\leq\sqrt5$

Ramanan answered Mar 4, 2020

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