Home > A2C > Chapter 4 > Lesson 4.2.1 > Problem 4-82
4-82.
Remember the rule (a + b)(a − b) = (a2 − b2).
(2x + 3y)(2x − 3y)
Remember to remove common factors.
2x3(4 − x4)
2x3(2 − x2)(2+ x2)
See part (a).
See part (b).
The pattern for parts (a) through (c) is that they contain a difference of squares.