CPM Homework Help : A2C Problem 12-24

Factor each of the following expressions completely.

$24x^{2} − 14x − 20$
Hint (a):
Start by factoring out 2.
More Help (a):
Guess and use a generic rectangle to check other factors.

$16x^{4} − 1$
Hint (b):
Notice that this is a difference of squares:
$\left(4x^{2}\right)^{2} − \left(1\right)^{2}$