SOLUTION: The directions say to; Solve each equation by graphing. If integral roots cannot be found , estimate the roots by stating the consecutive integers between which the roots lie.

Question 180292This question is from textbook Algebra I
: The directions say to; Solve each equation by graphing. If integral roots cannot be found , estimate the roots by stating the consecutive integers between which the roots lie.
The problem is written as;
This question is from textbook Algebra I

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
this can be factored to
:

:
n= plus and minus ........these are the roots (x-intercepts)
:

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=28 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 2.64575131106459, -2.64575131106459. Here's your graph:

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