### Home > PC3 > Chapter 11 > Lesson 11.1.4 > Problem 11-69

11-69.

Complete the parts below to completely factor .

To make a perfect square, what does the middle term need to be (instead of

)? Explain how

is equivalent to the original expression.What term was added and subtracted (for a total of

) to the original expression? Factor

.Factor

.This is a difference of squares.

Let

and use your answers to parts (a) through (d) to factor the original expression completely.