To solve this inequality, we will first simplify the expression:
log0.5(x^2-x-2) + 2 >= 0
We can rewrite the left side using the properties of logarithms:
log0.5(x^2-x-2) + log0.5(2) >= 0
Using the properties of logarithms, we can combine the logs:
log0.5(2(x^2-x-2)) >= 0
Now, we can rewrite the inequality without using logarithms:
0.5(2(x^2-x-2)) >= 1
Simplify the expression:
x^2 - x - 2 >= 1
Now we have a quadratic inequality. We can solve it by first setting it equal to 0:
x^2 - x - 2 - 1 >= 0
x^2 - x - 3 >= 0
Now, we can factor the quadratic:
(x-2)(x+1) >= 0
Solve for x by setting each factor equal to 0:
x-2 = 0 --> x = 2x+1 = 0 --> x = -1
Now we have the critical points x = -1 and x = 2. We can test the inequality at different intervals:
When x < -1:Choose x = -2:(-2 - 2)(-2 + 1) = (-4)(-1) = 4 > 0. True
When -1 < x < 2:Choose x = 0:(0 - 2)(0 + 1) = (-2)(1) = -2 < 0. False
When x > 2:Choose x = 3:(3 - 2)(3 + 1) = (1)(4) = 4 > 0. True
Therefore, the solution to the inequality is x <= -1 or x >= 2.
To solve this inequality, we will first simplify the expression:
log0.5(x^2-x-2) + 2 >= 0
We can rewrite the left side using the properties of logarithms:
log0.5(x^2-x-2) + log0.5(2) >= 0
Using the properties of logarithms, we can combine the logs:
log0.5(2(x^2-x-2)) >= 0
Now, we can rewrite the inequality without using logarithms:
0.5(2(x^2-x-2)) >= 1
Simplify the expression:
x^2 - x - 2 >= 1
Now we have a quadratic inequality. We can solve it by first setting it equal to 0:
x^2 - x - 2 - 1 >= 0
x^2 - x - 3 >= 0
Now, we can factor the quadratic:
(x-2)(x+1) >= 0
Solve for x by setting each factor equal to 0:
x-2 = 0 --> x = 2
x+1 = 0 --> x = -1
Now we have the critical points x = -1 and x = 2. We can test the inequality at different intervals:
When x < -1:
Choose x = -2:
(-2 - 2)(-2 + 1) = (-4)(-1) = 4 > 0. True
When -1 < x < 2:
Choose x = 0:
(0 - 2)(0 + 1) = (-2)(1) = -2 < 0. False
When x > 2:
Choose x = 3:
(3 - 2)(3 + 1) = (1)(4) = 4 > 0. True
Therefore, the solution to the inequality is x <= -1 or x >= 2.