How would I solve the following quadratic inequalities?

1.

2.

Printable View

- May 12th 2009, 08:25 PMSVXXQuadratic Inequality
How would I solve the following quadratic inequalities?

1.

2. - May 12th 2009, 10:30 PMGrandad
Hello SVXX1. Note that , which is always positive. So you just need to consider the sign of the denominator, , in the each of the ranges .

2.

Consider the values of which make each term zero; these are , and look at the sign of the expression as moves along the number line from left to right through these values; in other words in the ranges

For instance, when , you get . So is*not*part of the solution set.

Grandad - May 12th 2009, 10:51 PMSVXX
Aha..now I finally understand.

Also, in the second part, the checkpoint -4/3 will be part of the solution as it makes the expression = 0 but 1 and 2 will not be part of the solution as they make the expression indeterminate.

Thanks a bunch :)