# How to use the discriminant to find out what type of solutions the equation has for #5n² + 6n + 7 = n² - 4n#?

##### 1 Answer

First subtract

This is of the form

The discriminant is given by the formula:

Since

In general, the possible cases are:

Jun 6, 2015

First subtract

This is of the form

The discriminant is given by the formula:

Since

In general, the possible cases are: