Solution
Solution
+2
Solution steps
Rewrite in standard form
Complete the square
Move to the right side
Multiply both sides by
Divide both sides by
For , if is even then
Combine the intervals
Popular Examples
Frequently Asked Questions (FAQ)
What is -2x^2+6x<=-21 ?
The solution to -2x^2+6x<=-21 is x<= (-sqrt(51)+3)/2 \lor x>= (sqrt(51)+3)/2