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For which values of x is the inequality x² + x − 6 < 0 satisfied?
Question
If x² + x − 6 < 0, what is the range of x?
Why did you miss this?
Factored correctly but flipped the sign when reading the final interval — rushed the last step.
How to fix
Sketch the parabola mentally. Roots at −3 and 2 → negative between them.
Drill · April 22 · Quant · 20 Q
You improved on quadratic inequalities.
Accuracy
84%+11%
Avg. time
1m 48s
Errors logged
3
State the sign of ax² + bx + c between its roots, when a > 0.
Question
If x² + x − 6 < 0, what is the range of x?
Why did you miss this?
Factored correctly but flipped the sign when reading the final interval — rushed the last step.
How to fix
Sketch the parabola mentally. Roots at −3 and 2 → negative between them.
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For which values of x is the inequality x² + x − 6 < 0 satisfied?
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Question
If x² + x − 6 < 0, what is the range of x?
Why did you miss this?
Factored correctly but flipped the sign when reading the final interval — rushed the last step.
How to fix
Sketch the parabola mentally. Roots at −3 and 2 → negative between them.
State the sign of ax² + bx + c between its roots, when a > 0.
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— Pablo Neruda
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