The polynomial is
.
The general quadratic expression form is
.
In the above trinomial,
.Since
is negative, so the factors m and p have opposite signs.So either m or p is negative, but not both.
Since
is positive, the factor with the greater absolute value is also positive.
You need to find one factor of each pair is negative with a sum of 9 and a product of
.
Make a list of the factors of
and look for the of factors with the sum of 9.

The correct factors are
.
Apply the pattern:
.

Group terms with common factors.
\
Factors the GCF from each group.
\
Notice that
is common in both groups, so it becomes the GCF.
Apply distributive property:
.

The factors form of equation is
.
Apply zero product property:
.

Solve the first equation,
.
Solve the second equation,
.
Add 3 to each side.
\

Divide each side by 2.
\
.
Check for first solution:
\To check the solution, the value of
substitute in original equation,
.




(Solution checks)
Check for second solution:
\To check the solution, the value of
substitute in original equation,
.





(Solution checks)
The value of
.