Given:

To find:
The product of the expression.
Solution:

Take out -4 as a common factor in Last two terms.

Make sure the terms in both brackets must be same.
Take out common factor (2y - 5) from both terms.

4 can be written as 2².

Using the identity: 
.
The product is
.
Answer:
x^3 +3x^2 - 5x - 4
Step-by-step explanation:
Have to rearrange the terms into the correct format from biggest exponent to no exponent. Basically!