The polynomial is .

The GCF of is 2, so factor it out.

.

Since the first term, is not a perfect square, this is not a perfect square terminal.

The general quadratic expression form is .

In the above trinomial, .Since is positive and is negative, so m and p are both negative.You need to find two negative factors with a sum of and a product of  .

Make a list of the factors of 40 and look for the of factors with the sum of .

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 polynomial is .