Given:
- x>2
- −3<x<2
- x<−3
- x>−3
If x2+x−6>0, then the inequality is satisfied by...
Explanation
We will solve the inequality:
x2+x−6>0
Factor the quadratic equation:
(x−2)(x+3)>0
The zeros (roots) of the equation are:
x=2orx=−3
We test points on the number line:
Number Line
Visualization of the inequality solution region.
+++
−−−
+++
−3
2
- For x<−3 (e.g., −4): (−4−2)(−4+3)=(−6)(−1)=6 (Positive)
- For −3<x<2 (e.g., 0): (0−2)(0+3)=(−2)(3)=−6 (Negative)
- For x>2 (e.g., 3): (3−2)(3+3)=(1)(6)=6 (Positive)
Since the inequality sign is >0 (positive), the solution region is:
x<−3orx>2
Based on the given statements:
- x>2 (Matches)
- −3<x<2 (Does not match)
- x<−3 (Matches)
- x>−3 (Does not match)
Thus, the inequality is satisfied by statements 1 and 3.