CPM Homework Help : CCA Problem 10-21

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Home > CCA > Chapter 10 > Lesson 10.1.1 > Problem 10-21

10-21.

Factor each polynomial.

$64x^2-y^2$
Hint (a):
This is a difference of squares.
Answer (a):
$(8x+y)(8x−y)$

$12x^2-xy-6y^2$
Hint (b):
Use a generic rectangle and
a diamond problem to factor.
Answer (b):
$(4x−3y)(3x+2y)$

$4x^2+12x+9$
Hint (c):
This one is a perfect square trinomial.

$x^2-3x+18$
Hint (d):
Can you find two numbers that
multiply to $+18$ and add to $−3$ ?

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