SOLUTION: How would I factor the polynomial, b (to the 4th power) - 16

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Question 650256: How would I factor the polynomial,
b (to the 4th power) - 16
Found 2 solutions by jim_thompson5910, sheldonbbtrocks:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
b^4 - 16

(b^2)^2 - 4^2

(b^2 - 4)(b^2 + 4)

(b^2 - 2^2)(b^2 + 4)

(b - 2)(b + 2)(b^2 + 4)

Answer by sheldonbbtrocks(115) About Me  (Show Source):
You can put this solution on YOUR website!
Here is how to factor b%5E4-16%29%0D%0A%0D%0AFirst%2C+we+need+to+find+the+square+root+of+%7B%7B%7Bb%5E4 that is b%5E2
Next, we need to be able to get the square root of 16, that is 4. We will use a positive and negative 4. Why, because -4*+4=-16
%28b%5E2%2B4%29%28b%5E2-4%29
Hope this helps you!
Dr. Sheldon Cooper