Solve for x
x\in \mathrm{R}
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x^{2}>\frac{21}{-3}
Divide both sides by -3. Since -3 is negative, the inequality direction is changed.
x^{2}>-7
Divide 21 by -3 to get -7.
x\in \mathrm{R}
The value of the expression x^{2} is always ≥0. Inequality holds for x\in \mathrm{R}.
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Limits
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