kalliebjones4511
06.07.2019 •
Mathematics
Factor completely.
81x4-1
a. (3x + 1)(3x - 1)(3x + 1)(3x - 1)
b. 9x? (9x2 - 1)
c. (9x2 + 1)(9x2 - 1)
d. (9x2 + 1)(3x + 1)(3x - 1)
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Ответ:
Option D
Step-by-step explanation:
We have the following expression
We can rewrite the expression in the following way:
Remember the following property
Then in this case and
So we have that
Now we can rewrite the expression as follows
So
Then in this case and
So we have that
finally the factored expression is:
Ответ:
68 and 43 are the answer