SOLUTION: please help me I have 2 problems I would love to see if you could help me with x4-16 and also 3x2-12y2

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Question 88226: please help me
I have 2 problems I would love to see if you could help me with
x4-16 and also 3x2-12y2
Answer by rossiv53(27) About Me  (Show Source):
You can put this solution on YOUR website!
1. x%5E4-16
Use difference of squares
%28x%5E2%2B4%29%28x%5E2-4%29
Can be factored further by using difference of squares
Answer is...
%28x%5E2%2B4%29%28x%2B2%29%28x-2%29
2. 3x%5E2-12y%5E2
First, factor out the common factor of 3
3%28x%5E2-4y%5E2%29
Then use difference of squares to arrive at answer
3%28x-2y%29%28x%2B2y%29
Good luck!