Steps to solve a Quadratic Inequalities

Step to solve a Quadratic Inequalities

Step 1 : Rewrite the inequality with zero on one side and make sure a > 0
Step 2 : Find where it crosses the x-axis  (Put y=0)
Step 3 : Sketch the graph and shade the region to find the range of values of  x


Example 

Find the range of values of x for each of the following :

(a) x 2 4 x + 3 < 0
(b) 12 + 10 x 2 x 2 < 0



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