### Home > CCAA8 > Chapter cca10 > Lesson cca10.1.1 > Problem10-21

10-21.

Factor each polynomial. Homework Help ✎

1. $64x^2-y^2$

• This is a difference of squares.

• $(8x+y)(8x−y)$

1. $12x^2-xy-6y^2$

• Use a generic rectangle and
a diamond problem to factor.

• $(4x−3y)(3x+2y)$

1. $4x^2+12x+9$

• This one is a perfect square trinomial.

1. $x^2-3x+18$

• Can you find two numbers that
multiply to $+18$ and add to $−3$?